diff --git a/apps/rebreak-native/app/urge.tsx b/apps/rebreak-native/app/urge.tsx
index 0c64f88..ad011bf 100644
--- a/apps/rebreak-native/app/urge.tsx
+++ b/apps/rebreak-native/app/urge.tsx
@@ -26,12 +26,15 @@ import GamePickerDrawer from '../components/urge/GamePickerDrawer';
 import { VoiceBars } from '../components/urge/InlineIndicators';
 import MessageRow, { GameHeader, type SosMsg } from '../components/urge/MessageRow';
 import { SOS_BOOT } from '../lib/sosPrompts';
-import { CHIP_SETS, type ChipSet } from '../lib/sosConstants';
+import { CHIP_SETS, BREATH_PHASES, type ChipSet } from '../lib/sosConstants';
 import { parseLyraResponse, detectEmotion, type LyraEmotion, type ChipSpec } from '../lib/lyraResponse';
 import { streamSosLyra } from '../lib/sosStream';
 import { SosTtsQueue } from '../lib/sosTtsQueue';
-import { endpointForProvider, useTtsProvider, type TtsProvider } from '../lib/ttsProvider';
+import { endpointForProvider, useTtsProvider, currentProvider, type TtsProvider } from '../lib/ttsProvider';
 import { TtsProviderToggle } from '../components/urge/TtsProviderToggle';
+import { LlmProviderToggle } from '../components/urge/LlmProviderToggle';
+import { currentLlmProvider } from '../lib/llmProvider';
+import { BenchSession } from '../lib/sosTtsBenchmark';
 
 // ── Main Screen ───────────────────────────────────────────────────────────────
 
@@ -98,11 +101,32 @@ export default function SOSScreen() {
 
   useEffect(() => { soundEnabledRef.current = soundEnabled; }, [soundEnabled]);
 
-  // Aktueller TTS-Provider — Ref damit async-Code (sendToLyra) den frischen Wert
-  // sieht ohne stale-closure aus dem ursprünglichen Render.
+  // Aktueller TTS-Provider — currentProvider() liest immer den frischen Wert,
+  // ttsProvider state ist nur für UI-Re-Renders + cache-invalidation hier.
   const [ttsProvider] = useTtsProvider();
-  const ttsProviderRef = useRef<TtsProvider>(ttsProvider);
-  useEffect(() => { ttsProviderRef.current = ttsProvider; }, [ttsProvider]);
+
+  // Pre-cache der Atemübungs-Voice-Cues (Einatmen / Halten / Ausatmen).
+  // Bei Phase-Wechsel im BreathingDrawer kommt das Audio sofort statt mit
+  // ~600ms TTS-Roundtrip — so bleibt Voice synchron mit der Pulse-Animation.
+  // Cache wird invalidiert wenn User den TTS-Provider wechselt.
+  const breathAudioCacheRef = useRef<Map<string, string>>(new Map());
+  useEffect(() => {
+    breathAudioCacheRef.current.clear();
+    const phrases = BREATH_PHASES
+      .map((p) => p.speakLine)
+      .filter((s): s is string => Boolean(s));
+    let cancelled = false;
+    (async () => {
+      for (const text of phrases) {
+        if (cancelled) return;
+        const audio = await fetchTtsAudio(text).catch(() => null);
+        if (cancelled) return;
+        if (audio) breathAudioCacheRef.current.set(text, audio.uri);
+      }
+    })();
+    return () => { cancelled = true; };
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [ttsProvider]);
 
   // Audio-Mode: bei SOS-Mount Audio-Session konfigurieren.
   // - playsInSilentModeIOS: Lyra spricht auch wenn iPhone auf "stumm"
@@ -216,7 +240,10 @@ export default function SOSScreen() {
     const session = (await supabase.auth.getSession()).data.session;
     if (controller.signal.aborted) return null;
     const apiBase = Constants.expoConfig?.extra?.apiUrl as string;
-    const ttsRes = await fetch(`${apiBase}/api/coach/speak-openai`, {
+    // Endpoint folgt User-Provider-Toggle (TtsProviderToggle im SOS-Header).
+    const endpoint = endpointForProvider(currentProvider());
+    const isGoogleCloud = endpoint.endsWith('/speak-google');
+    const ttsRes = await fetch(`${apiBase}${endpoint}`, {
       method: 'POST',
       headers: {
         'Content-Type': 'application/json',
@@ -226,15 +253,29 @@ export default function SOSScreen() {
       signal: controller.signal,
     });
     if (!ttsRes.ok || controller.signal.aborted) return null;
-    const buffer = await ttsRes.arrayBuffer();
-    if (controller.signal.aborted || buffer.byteLength === 0) return null;
-    const bytes = new Uint8Array(buffer);
-    const chunks: string[] = [];
-    const cs = 0x8000;
-    for (let i = 0; i < bytes.length; i += cs)
-      chunks.push(String.fromCharCode(...bytes.subarray(i, Math.min(i + cs, bytes.length))));
-    const base64 = btoa(chunks.join(''));
-    const tmpPath = `${FileSystem.cacheDirectory}sos-tts-${Date.now()}-${Math.random().toString(36).slice(2, 8)}.mp3`;
+
+    let base64: string;
+    let ext: 'mp3' | 'wav';
+    if (isGoogleCloud) {
+      const json = (await ttsRes.json()) as { audio?: string };
+      const dataUri = json.audio ?? '';
+      const comma = dataUri.indexOf(',');
+      if (comma === -1) return null;
+      base64 = dataUri.slice(comma + 1);
+      ext = 'mp3';
+    } else {
+      const buffer = await ttsRes.arrayBuffer();
+      if (controller.signal.aborted || buffer.byteLength === 0) return null;
+      const bytes = new Uint8Array(buffer);
+      const chunks: string[] = [];
+      const cs = 0x8000;
+      for (let i = 0; i < bytes.length; i += cs)
+        chunks.push(String.fromCharCode(...bytes.subarray(i, Math.min(i + cs, bytes.length))));
+      base64 = btoa(chunks.join(''));
+      ext = endpoint.endsWith('/speak-gemini') ? 'wav' : 'mp3';
+    }
+
+    const tmpPath = `${FileSystem.cacheDirectory}sos-tts-${Date.now()}-${Math.random().toString(36).slice(2, 8)}.${ext}`;
     await FileSystem.writeAsStringAsync(tmpPath, base64, { encoding: FileSystem.EncodingType.Base64 });
     if (controller.signal.aborted) return null;
     return { uri: tmpPath, controller };
@@ -288,6 +329,13 @@ export default function SOSScreen() {
       ttsRef.current = null;
       setIsSpeaking(false);
     }
+    // Cache-hit (Atemübung-Phrasen): instant playback, kein API-roundtrip.
+    const cleaned = rawText.replace(/\s+/g, ' ').trim();
+    const cachedUri = breathAudioCacheRef.current.get(cleaned);
+    if (cachedUri) {
+      await playTtsAudio(cleaned, { uri: cachedUri, controller: new AbortController() });
+      return;
+    }
     const audio = await fetchTtsAudio(rawText).catch(() => null);
     if (!audio) return;
     await playTtsAudio(rawText, audio);
@@ -299,6 +347,10 @@ export default function SOSScreen() {
     addMessage({ id: Date.now().toString(), role: 'user', content: userText, timestamp: new Date() });
     setUserTurnCount((n) => n + 1);
     setThinking(true); setEmotion('thinking');
+    // Latenz-Benchmark — eine Session pro sendToLyra-Call. Marker werden in
+    // stream/queue über onMetric gesammelt, gedruckt im onIdle (oder als
+    // Fallback im finally bei Errors / sound-off).
+    const bench = new BenchSession({ provider: currentProvider(), label: 'send' });
     try {
       const visibleHistory = messages.filter((m) => !m.cardType).map((m) => ({ role: m.role, content: m.content }));
 
@@ -393,12 +445,13 @@ export default function SOSScreen() {
             apiBase,
             accessToken: session.access_token,
             locale: i18n.language,
-            endpoint: endpointForProvider(ttsProviderRef.current),
+            endpoint: endpointForProvider(currentProvider()),
             onStart: () => { setIsSpeaking(true); setIsTtsLoading(false); },
-            onIdle: () => { setIsSpeaking(false); setIsTtsLoading(false); scheduleEmotionReset(0); },
+            onIdle: () => { setIsSpeaking(false); setIsTtsLoading(false); scheduleEmotionReset(0); bench.print(); },
             onError: (err, sentence) => {
               console.warn('[sos-tts-queue] segment failed:', sentence.slice(0, 50), err);
             },
+            onMetric: bench.mark,
           })
         : null;
       ttsQueueRef.current = ttsQueue;
@@ -411,6 +464,8 @@ export default function SOSScreen() {
           token: session.access_token,
           messages: apiMessages,
           locale: i18n.language,
+          llmProvider: currentLlmProvider(),
+          onMetric: bench.mark,
           onTextUpdate: (full) => {
             visible = full;
             ensureBubble(full);
@@ -532,7 +587,17 @@ export default function SOSScreen() {
     } catch {
       addMessage({ id: (Date.now() + 1).toString(), role: 'assistant', content: t('coach.error'), timestamp: new Date() });
       setEmotion('idle');
-    } finally { setThinking(false); }
+    } finally {
+      setThinking(false);
+      // Fallback-Print NUR wenn keine TTS-Queue (mehr) aktiv ist. Sonst feuert
+      // das finally bei kurzen Antworten zu früh — der TTS-Fetch läuft dann
+      // gerade erst, headers kommen erst Sekunden später, und ein print()
+      // hier würde alle TTS-Marker verwerfen. Im aktiven Fall übernimmt
+      // ttsQueue.onIdle den Print.
+      if (!ttsQueueRef.current?.isActive()) {
+        bench.print('finally');
+      }
+    }
   }
 
   // Opening greeting on mount — nutzt gleichen Streaming-Pfad wie sendToLyra,
@@ -558,18 +623,22 @@ export default function SOSScreen() {
         if (!session?.access_token) throw new Error('no token');
         const apiBase = Constants.expoConfig?.extra?.apiUrl as string;
 
+        // Latenz-Benchmark fürs Greeting — gleiches Pattern wie sendToLyra.
+        const greetingBench = new BenchSession({ provider: currentProvider(), label: 'greeting' });
+
         // Hybrid-TTS-Queue, gleiches Pattern wie sendToLyra
         const ttsQueue = soundEnabledRef.current
           ? new SosTtsQueue({
               apiBase,
               accessToken: session.access_token,
               locale: i18n.language,
-              endpoint: endpointForProvider(ttsProviderRef.current),
+              endpoint: endpointForProvider(currentProvider()),
               onStart: () => { setIsSpeaking(true); setIsTtsLoading(false); },
-              onIdle: () => { setIsSpeaking(false); setIsTtsLoading(false); scheduleEmotionReset(0); },
+              onIdle: () => { setIsSpeaking(false); setIsTtsLoading(false); scheduleEmotionReset(0); greetingBench.print(); },
               onError: (err, sentence) => {
                 console.warn('[sos-tts-greeting] segment failed:', sentence.slice(0, 50), err);
               },
+              onMetric: greetingBench.mark,
             })
           : null;
         ttsQueueRef.current?.abort();
@@ -588,6 +657,8 @@ export default function SOSScreen() {
             token: session.access_token,
             messages: SOS_BOOT,
             locale: i18n.language,
+            llmProvider: currentLlmProvider(),
+            onMetric: greetingBench.mark,
             onTextUpdate: (full) => {
               if (cancelled) return;
               visible = full;
@@ -1026,7 +1097,7 @@ export default function SOSScreen() {
         <View style={st.avatarCenter}>
           <RiveAvatar emotion={emotion} size="md" />
           <View style={st.avatarMeta}>
-            <Text style={st.avatarName}>Lyra · SOS</Text>
+            <Text style={st.avatarName}>Lyra · SOS [v2]</Text>
             {(thinking || isLoading) && !isSpeaking && (
               <View style={st.speakingRow}>
                 <VoiceBars count={5} baseColor="#3b82f6" />
@@ -1056,6 +1127,7 @@ export default function SOSScreen() {
 
       <View style={[st.ttsToggleBar, { top: topBarHeight - 36 }]} pointerEvents="box-none">
         <TtsProviderToggle />
+        <LlmProviderToggle />
       </View>
 
       {playingGame ? (
@@ -1226,7 +1298,7 @@ const st = StyleSheet.create({
   container: { flex: 1, backgroundColor: '#ffffff' },
   topBar: { position: 'absolute', left: 0, right: 0, zIndex: 10, flexDirection: 'row', alignItems: 'flex-start', justifyContent: 'space-between', paddingHorizontal: 12 },
   topBarBackdrop: { position: 'absolute', top: 0, left: 0, right: 0, zIndex: 9, backgroundColor: '#ffffff' },
-  ttsToggleBar: { position: 'absolute', left: 0, right: 0, zIndex: 8, alignItems: 'center' },
+  ttsToggleBar: { position: "absolute", left: 0, right: 0, zIndex: 11, alignItems: "center" },
   actionBtn: { width: 40, height: 40, borderRadius: 20, backgroundColor: 'rgba(255,255,255,0.92)', alignItems: 'center', justifyContent: 'center', shadowColor: '#000', shadowOffset: { width: 0, height: 2 }, shadowOpacity: 0.08, shadowRadius: 6, elevation: 4 },
   avatarCenter: { flex: 1, alignItems: 'center', gap: 4 },
   avatarMeta: { alignItems: 'center', gap: 2 },
diff --git a/apps/rebreak-native/components/urge/LlmProviderToggle.tsx b/apps/rebreak-native/components/urge/LlmProviderToggle.tsx
new file mode 100644
index 0000000..d921a6a
--- /dev/null
+++ b/apps/rebreak-native/components/urge/LlmProviderToggle.tsx
@@ -0,0 +1,60 @@
+import { Pressable, Text, View } from 'react-native';
+import { LLM_PROVIDER_LABEL, type LlmProvider, useLlmProvider } from '../../lib/llmProvider';
+
+const PROVIDERS: LlmProvider[] = ['openrouter-sonnet', 'openrouter-haiku', 'groq-llama'];
+
+export function LlmProviderToggle() {
+  const [current, set] = useLlmProvider();
+  return (
+    <View
+      style={{
+        flexDirection: 'row',
+        alignItems: 'center',
+        justifyContent: 'center',
+        gap: 6,
+        paddingHorizontal: 12,
+        paddingVertical: 6,
+      }}
+    >
+      <Text
+        style={{
+          fontSize: 9,
+          color: '#9ca3af',
+          textTransform: 'uppercase',
+          letterSpacing: 0.5,
+          marginRight: 4,
+        }}
+      >
+        LLM
+      </Text>
+      {PROVIDERS.map((p) => {
+        const active = p === current;
+        return (
+          <Pressable
+            key={p}
+            onPress={() => { void set(p); }}
+            hitSlop={6}
+            style={{
+              paddingHorizontal: 10,
+              paddingVertical: 4,
+              borderRadius: 999,
+              backgroundColor: active ? '#1f2937' : '#e5e7eb',
+              borderWidth: 1.5,
+              borderColor: active ? '#1f2937' : '#9ca3af',
+            }}
+          >
+            <Text
+              style={{
+                fontSize: 10,
+                fontFamily: 'Nunito_700Bold',
+                color: active ? '#ffffff' : '#374151',
+              }}
+            >
+              {LLM_PROVIDER_LABEL[p]}
+            </Text>
+          </Pressable>
+        );
+      })}
+    </View>
+  );
+}
diff --git a/apps/rebreak-native/components/urge/TtsProviderToggle.tsx b/apps/rebreak-native/components/urge/TtsProviderToggle.tsx
index 9797b0a..fb7b4d3 100644
--- a/apps/rebreak-native/components/urge/TtsProviderToggle.tsx
+++ b/apps/rebreak-native/components/urge/TtsProviderToggle.tsx
@@ -1,7 +1,7 @@
 import { Pressable, Text, View } from 'react-native';
 import { TTS_PROVIDER_LABEL, type TtsProvider, useTtsProvider } from '../../lib/ttsProvider';
 
-const PROVIDERS: TtsProvider[] = ['openai', 'gemini', 'google-cloud'];
+const PROVIDERS: TtsProvider[] = ['openai', 'gemini', 'elevenlabs', 'cartesia', 'google-cloud'];
 
 export function TtsProviderToggle() {
   const [current, set] = useTtsProvider();
@@ -38,16 +38,16 @@ export function TtsProviderToggle() {
               paddingHorizontal: 10,
               paddingVertical: 4,
               borderRadius: 999,
-              backgroundColor: active ? '#1f2937' : '#f9fafb',
-              borderWidth: 1,
-              borderColor: active ? '#1f2937' : '#e5e7eb',
+              backgroundColor: active ? '#1f2937' : '#e5e7eb',
+              borderWidth: 1.5,
+              borderColor: active ? '#1f2937' : '#9ca3af',
             }}
           >
             <Text
               style={{
                 fontSize: 10,
                 fontFamily: 'Nunito_700Bold',
-                color: active ? '#ffffff' : '#6b7280',
+                color: active ? '#ffffff' : '#374151',
               }}
             >
               {TTS_PROVIDER_LABEL[p]}
diff --git a/apps/rebreak-native/lib/llmProvider.ts b/apps/rebreak-native/lib/llmProvider.ts
new file mode 100644
index 0000000..8ad44b8
--- /dev/null
+++ b/apps/rebreak-native/lib/llmProvider.ts
@@ -0,0 +1,52 @@
+// SOS-LLM-Provider mit AsyncStorage-Persist + Listener-Pattern.
+// Live-Switch im SOS-Screen — analog zu lib/ttsProvider.ts.
+//
+// Backend (sos-session.post.ts) nimmt das Feld entgegen, sos-stream.get.ts
+// routet dann je nach Wert zu OpenRouter (Sonnet/Haiku) oder Groq (Llama).
+import AsyncStorage from '@react-native-async-storage/async-storage';
+import { useEffect, useState } from 'react';
+
+export type LlmProvider = 'openrouter-sonnet' | 'openrouter-haiku' | 'groq-llama';
+
+const STORAGE_KEY = 'rebreak-sos-llm-provider';
+const DEFAULT_PROVIDER: LlmProvider = 'openrouter-sonnet';
+
+export const LLM_PROVIDER_LABEL: Record<LlmProvider, string> = {
+  'openrouter-sonnet': 'Sonnet',
+  'openrouter-haiku': 'Haiku',
+  'groq-llama': 'Groq',
+};
+
+const listeners = new Set<(p: LlmProvider) => void>();
+let cached: LlmProvider | null = null;
+
+export async function loadLlmProvider(): Promise<LlmProvider> {
+  if (cached) return cached;
+  const raw = await AsyncStorage.getItem(STORAGE_KEY).catch(() => null);
+  cached =
+    raw === 'openrouter-haiku' || raw === 'groq-llama' ? raw : DEFAULT_PROVIDER;
+  return cached;
+}
+
+export async function setLlmProvider(p: LlmProvider): Promise<void> {
+  cached = p;
+  await AsyncStorage.setItem(STORAGE_KEY, p).catch(() => {});
+  for (const cb of listeners) cb(p);
+}
+
+/** Always-fresh read — analog zu currentProvider() in ttsProvider.ts. */
+export function currentLlmProvider(): LlmProvider {
+  return cached ?? DEFAULT_PROVIDER;
+}
+
+export function useLlmProvider(): [LlmProvider, (p: LlmProvider) => Promise<void>] {
+  const [p, setP] = useState<LlmProvider>(cached ?? DEFAULT_PROVIDER);
+  useEffect(() => {
+    let mounted = true;
+    loadLlmProvider().then((v) => { if (mounted) setP(v); });
+    const cb = (v: LlmProvider) => { if (mounted) setP(v); };
+    listeners.add(cb);
+    return () => { mounted = false; listeners.delete(cb); };
+  }, []);
+  return [p, setLlmProvider];
+}
diff --git a/apps/rebreak-native/lib/sosConstants.ts b/apps/rebreak-native/lib/sosConstants.ts
index 99d3a4f..6a37430 100644
--- a/apps/rebreak-native/lib/sosConstants.ts
+++ b/apps/rebreak-native/lib/sosConstants.ts
@@ -46,9 +46,9 @@ export type BreathState = 'idle' | 'countdown' | 'active';
 // speakLine bewusst durchgehend null — Phase-TTS würde Lyras laufende Audio abbrechen
 // (User-Wahrnehmung: "Stimme ändert sich"). Visuelles Pulsieren + Countdown reicht.
 export const BREATH_PHASES: { phase: BreathPhase; duration: number; label: string; color: string; speakLine: string | null }[] = [
-  { phase: 'inhale', duration: 4, label: 'Einatmen', color: '#6366f1', speakLine: null },
-  { phase: 'hold', duration: 7, label: 'Halten', color: '#f97316', speakLine: null },
-  { phase: 'exhale', duration: 8, label: 'Ausatmen', color: '#16a34a', speakLine: null },
+  { phase: 'inhale', duration: 4, label: 'Einatmen', color: '#6366f1', speakLine: 'Einatmen' },
+  { phase: 'hold', duration: 7, label: 'Halten', color: '#f97316', speakLine: 'Halten' },
+  { phase: 'exhale', duration: 8, label: 'Ausatmen', color: '#16a34a', speakLine: 'Ausatmen' },
 ];
 export const TOTAL_ROUNDS = 3;
 
diff --git a/apps/rebreak-native/lib/sosStream.ts b/apps/rebreak-native/lib/sosStream.ts
index 329b29b..53d77ae 100644
--- a/apps/rebreak-native/lib/sosStream.ts
+++ b/apps/rebreak-native/lib/sosStream.ts
@@ -11,6 +11,8 @@
 // direkt in eine TTS-Queue schieben → erste Audio-Wiedergabe ~3s früher als
 // "warten bis fullText fertig".
 import EventSource from 'react-native-sse';
+import type { BenchOnMetric } from './sosTtsBenchmark';
+import type { LlmProvider } from './llmProvider';
 
 type SseEvents = 'message' | 'chips' | 'done';
 
@@ -19,6 +21,9 @@ export type StreamSosLyraOpts = {
   token: string;
   messages: Array<{ role: 'user' | 'assistant'; content: string }>;
   locale: string;
+  /** LLM-Provider-Switch: bestimmt welches Modell der Server für diese Session
+   *  benutzt. Default (undefined) → openrouter-sonnet auf Server-Seite. */
+  llmProvider?: LlmProvider;
   onTextUpdate: (full: string) => void;
   onChips: (chips: Array<{ label: string; action: string }>) => void;
   /** Phase B: feuert pro fertigem Satz live während des Streams + Tail beim
@@ -27,6 +32,9 @@ export type StreamSosLyraOpts = {
   onSentence?: (sentence: string) => void;
   onDone: (full: string) => void;
   onError: (err: unknown) => void;
+  /** Latenz-Benchmark: feuert session-post-start, session-post-done,
+   *  sse-first-chunk, sse-done. Siehe lib/sosTtsBenchmark.ts. */
+  onMetric?: BenchOnMetric;
 };
 
 // Min-Länge für sentence-level TTS — winzige "Hm." / "Ja." kommen mit dem
@@ -59,16 +67,18 @@ function consumeCompletedSentences(text: string): { sentences: string[]; consume
 
 export async function streamSosLyra(opts: StreamSosLyraOpts): Promise<() => void> {
   // Step 1: POST zu /api/coach/sos-session → sessionId holen
+  opts.onMetric?.('session-post-start');
   const sessRes = await fetch(`${opts.apiBase}/api/coach/sos-session`, {
     method: 'POST',
     headers: {
       'Content-Type': 'application/json',
       Authorization: `Bearer ${opts.token}`,
     },
-    body: JSON.stringify({ messages: opts.messages, locale: opts.locale }),
+    body: JSON.stringify({ messages: opts.messages, locale: opts.locale, llmProvider: opts.llmProvider }),
   });
   if (!sessRes.ok) throw new Error(`session: ${sessRes.status}`);
   const { sessionId } = await sessRes.json();
+  opts.onMetric?.('session-post-done');
 
   // Step 2: EventSource für SSE-Stream
   // pollingInterval: 0 → KEIN Auto-Reconnect (Session ist one-time-use)
@@ -80,6 +90,7 @@ export async function streamSosLyra(opts: StreamSosLyraOpts): Promise<() => void
 
   let fullText = '';
   let sentenceConsumedIndex = 0;
+  let firstChunkSeen = false;
 
   const flushNewSentences = () => {
     if (!opts.onSentence) return;
@@ -104,6 +115,10 @@ export async function streamSosLyra(opts: StreamSosLyraOpts): Promise<() => void
       chunk = event.data;
     }
     if (!chunk) return;
+    if (!firstChunkSeen) {
+      firstChunkSeen = true;
+      opts.onMetric?.('sse-first-chunk');
+    }
     fullText += chunk;
     opts.onTextUpdate(fullText);
     // Phase B: live sentence-detection für TTS-Queue
@@ -119,6 +134,7 @@ export async function streamSosLyra(opts: StreamSosLyraOpts): Promise<() => void
   });
 
   es.addEventListener('done', () => {
+    opts.onMetric?.('sse-done');
     // Phase B: Tail flushen (letzter Satz ohne folgendes Capital-Letter wird
     // sonst nie als "complete" erkannt). Trim leeren Tail away.
     if (opts.onSentence) {
diff --git a/apps/rebreak-native/lib/sosTtsBenchmark.ts b/apps/rebreak-native/lib/sosTtsBenchmark.ts
new file mode 100644
index 0000000..4b2c6e7
--- /dev/null
+++ b/apps/rebreak-native/lib/sosTtsBenchmark.ts
@@ -0,0 +1,105 @@
+// SOS+TTS Latenz-Benchmark.
+//
+// Eine BenchSession pro sendToLyra-Call. Aggregiert Timing-Marker aus
+// sosStream + sosTtsQueue und druckt am Ende eine Tabelle ins Dev-Console.
+//
+// Marker-Reihenfolge im typischen Flow:
+//   t0  request-fired       (sendToLyra start)
+//   t1  session-post-done   (POST /sos-session resolved → sessionId da)
+//   t2  sse-first-chunk     ("Lyra denkt fertig" — erstes Token)
+//   t3  sse-done            (full text fertig)
+//   t4  tts-fetch-start     (POST an /api/coach/speak-* fired)
+//   t5  tts-fetch-headers   (response headers da, body kommt noch)
+//   t6  tts-body-done       (kompletter Audio-Body geladen — DAS ist der Bottleneck)
+//   t7  tts-file-written    (base64 → File geschrieben)
+//   t8  audio-loaded        (Audio.Sound.createAsync resolved)
+//   t9  first-audio         (erstes onPlaybackStatusUpdate mit isPlaying)
+//
+// Bottleneck-Diagnose:
+//   - (t6 - t5) groß → Body-Download dominiert. Cartesia's TTFB-Vorteil
+//     verpufft hier weil wir auf alles warten statt zu streamen.
+//   - (t9 - t8) groß → expo-av lädt langsam (file-codec-detect etc.)
+
+export type BenchMarker =
+  | 'session-post-start'
+  | 'session-post-done'
+  | 'sse-first-chunk'
+  | 'sse-done'
+  | 'tts-fetch-start'
+  | 'tts-fetch-headers'
+  | 'tts-body-done'
+  | 'tts-file-written'
+  | 'audio-loaded'
+  | 'first-audio';
+
+export type BenchOnMetric = (marker: BenchMarker, meta?: Record<string, unknown>) => void;
+
+type MarkerEntry = {
+  marker: BenchMarker;
+  /** ms relativ zu t0 */
+  tRel: number;
+  meta?: Record<string, unknown>;
+};
+
+export class BenchSession {
+  readonly t0: number;
+  readonly provider: string;
+  readonly label: string;
+  private entries: MarkerEntry[] = [];
+  private printed = false;
+
+  constructor(opts: { provider: string; label?: string }) {
+    this.t0 = Date.now();
+    this.provider = opts.provider;
+    this.label = opts.label ?? 'sos-turn';
+  }
+
+  /** Bound version — kann direkt als onMetric weitergegeben werden. */
+  readonly mark: BenchOnMetric = (marker, meta) => {
+    if (this.printed) return;
+    this.entries.push({ marker, tRel: Date.now() - this.t0, meta });
+  };
+
+  /** Druckt eine kompakte Tabelle. Idempotent (nur 1x pro Session). */
+  print(extraNote?: string): void {
+    if (this.printed) return;
+    this.printed = true;
+
+    const get = (m: BenchMarker) => this.entries.find((e) => e.marker === m)?.tRel;
+    const fmt = (v: number | undefined) => (v == null ? '—' : `${v}ms`);
+    const diff = (a: BenchMarker, b: BenchMarker) => {
+      const va = get(a), vb = get(b);
+      return va != null && vb != null ? `${vb - va}ms` : '—';
+    };
+
+    const stages = {
+      provider: this.provider,
+      label: this.label,
+      'req→session': fmt(get('session-post-done')),
+      'lyra-ttfb': fmt(get('sse-first-chunk')),
+      'lyra-done': fmt(get('sse-done')),
+      'tts-fired': fmt(get('tts-fetch-start')),
+      'tts-ttfb (rel)': diff('tts-fetch-start', 'tts-fetch-headers'),
+      'tts-body (rel)': diff('tts-fetch-headers', 'tts-body-done'),
+      'tts-file (rel)': diff('tts-body-done', 'tts-file-written'),
+      'audio-load (rel)': diff('tts-file-written', 'audio-loaded'),
+      'first-audio': fmt(get('first-audio')),
+      'TOTAL → speak': fmt(get('first-audio')),
+    };
+
+    // Eine kompakte Zeile als console.log (für Logbox-Lesbarkeit) +
+    // console.table mit allen Markern (für strukturierte Inspektion).
+    // eslint-disable-next-line no-console
+    console.log(
+      `[bench] ${this.provider} (${this.label})${extraNote ? ' ' + extraNote : ''}`,
+      stages,
+    );
+    // eslint-disable-next-line no-console
+    console.table(this.entries.map((e) => ({ marker: e.marker, tRel: e.tRel })));
+  }
+
+  /** Snapshot für UI-Overlays (Debug-Drawer etc.). */
+  snapshot(): { provider: string; label: string; entries: MarkerEntry[] } {
+    return { provider: this.provider, label: this.label, entries: [...this.entries] };
+  }
+}
diff --git a/apps/rebreak-native/lib/sosTtsQueue.ts b/apps/rebreak-native/lib/sosTtsQueue.ts
index 0ee06fd..b68a315 100644
--- a/apps/rebreak-native/lib/sosTtsQueue.ts
+++ b/apps/rebreak-native/lib/sosTtsQueue.ts
@@ -16,6 +16,7 @@
 // `setIsSpeaking` triggern.
 import { Audio } from 'expo-av';
 import * as FileSystem from 'expo-file-system';
+import type { BenchOnMetric } from './sosTtsBenchmark';
 
 export type SosTtsFetchOpts = {
   apiBase: string;
@@ -33,6 +34,12 @@ export type SosTtsQueueOpts = SosTtsFetchOpts & {
   onIdle?: () => void;
   /** Single-sentence-fetch oder -playback ist gescheitert. Queue läuft weiter. */
   onError?: (err: unknown, sentence: string) => void;
+  /** Latenz-Benchmark: feuert nur für das ERSTE enqueue'te Item, weil das
+   *  user-wahrgenommen first-audio bestimmt. Marker: tts-fetch-start,
+   *  tts-fetch-headers, tts-body-done, tts-file-written, audio-loaded,
+   *  first-audio. Folge-Items (z.B. sos-continuation) instrumentieren wir
+   *  nicht — die spielen ja schon parallel zum ersten und verzerren nur. */
+  onMetric?: BenchOnMetric;
 };
 
 const EMOJI_RE = /[\p{Extended_Pictographic}\p{Emoji_Component}]/gu;
@@ -47,6 +54,10 @@ type QueueItem = {
   text: string;
   mode: SosTtsMode;
   controller: AbortController;
+  /** Nur das erste enqueue'te Item bekommt einen onMetric — das bestimmt
+   *  user-wahrgenommen first-audio. Folge-Items (sos-continuation) tracken
+   *  wir nicht. */
+  metric?: BenchOnMetric;
   /** Pre-fetch starts beim enqueue → wenn play dran ist, ist Audio meist schon
    *  fertig oder fast fertig. Eliminiert Gap zwischen Items im Hybrid-Mode. */
   audioPromise: Promise<{ uri: string } | null>;
@@ -59,6 +70,12 @@ export class SosTtsQueue {
   private aborted = false;
   private startedOnce = false;
   private opts: SosTtsQueueOpts;
+  // Dedup: in dev-mode (React StrictMode) feuern useEffects 2x → identische
+  // Sätze würden 2x enqueued + 2x von der TTS-API geholt + 2x abgespielt.
+  // Wir tracken die in dieser Queue-Instanz schon gesehenen Texte.
+  private seenTexts = new Set<string>();
+  // Bench: nur das ERSTE enqueue'te Item kriegt Metric-Tracking.
+  private metricGiven = false;
 
   constructor(opts: SosTtsQueueOpts) {
     this.opts = opts;
@@ -74,15 +91,24 @@ export class SosTtsQueue {
     if (this.aborted) return;
     const cleaned = cleanForTts(sentence);
     if (!cleaned) return;
+    // Dedup gegen StrictMode-double-effects: gleicher Text in derselben
+    // Queue-Instanz wird nur 1x angefragt + abgespielt.
+    if (this.seenTexts.has(cleaned)) return;
+    this.seenTexts.add(cleaned);
     // Pre-fetch SOFORT beim enqueue → läuft parallel zum Playback der vorigen
     // Items. Heißt: wenn Item 1 fertig spielt, ist Item 2's Audio meist schon
     // im Cache → null Gap zwischen den Sätzen/Blöcken.
     const controller = new AbortController();
-    const audioPromise = this.fetchAudio(cleaned, mode, controller.signal).catch((err) => {
+    let metric: BenchOnMetric | undefined;
+    if (!this.metricGiven && this.opts.onMetric) {
+      this.metricGiven = true;
+      metric = this.opts.onMetric;
+    }
+    const audioPromise = this.fetchAudio(cleaned, mode, controller.signal, metric).catch((err) => {
       this.opts.onError?.(err, cleaned);
       return null;
     });
-    this.queue.push({ text: cleaned, mode, controller, audioPromise });
+    this.queue.push({ text: cleaned, mode, controller, metric, audioPromise });
     void this.tick();
   }
 
@@ -125,11 +151,13 @@ export class SosTtsQueue {
         { uri: audio.uri },
         { shouldPlay: true },
       );
+      item.metric?.('audio-loaded');
       if (this.aborted) {
         await sound.unloadAsync().catch(() => {});
         return;
       }
       this.currentSound = sound;
+      let firstAudioReported = false;
       await new Promise<void>((resolve) => {
         sound.setOnPlaybackStatusUpdate((status) => {
           if (this.aborted) {
@@ -137,6 +165,10 @@ export class SosTtsQueue {
             resolve();
             return;
           }
+          if (!firstAudioReported && status.isLoaded && status.isPlaying) {
+            firstAudioReported = true;
+            item.metric?.('first-audio');
+          }
           if (status.isLoaded && status.didJustFinish) {
             sound.setOnPlaybackStatusUpdate(null);
             sound.unloadAsync().catch(() => {});
@@ -158,9 +190,15 @@ export class SosTtsQueue {
     }
   }
 
-  private async fetchAudio(text: string, mode: SosTtsMode, signal: AbortSignal): Promise<{ uri: string } | null> {
+  private async fetchAudio(
+    text: string,
+    mode: SosTtsMode,
+    signal: AbortSignal,
+    metric?: BenchOnMetric,
+  ): Promise<{ uri: string } | null> {
     const endpoint = this.opts.endpoint ?? '/api/coach/speak-openai';
     const isGoogleCloud = endpoint.endsWith('/speak-google');
+    metric?.('tts-fetch-start', { endpoint });
     const res = await fetch(`${this.opts.apiBase}${endpoint}`, {
       method: 'POST',
       headers: {
@@ -170,6 +208,7 @@ export class SosTtsQueue {
       body: JSON.stringify({ text, locale: this.opts.locale, mode }),
       signal,
     });
+    metric?.('tts-fetch-headers', { status: res.status });
     if (!res.ok || signal.aborted) return null;
 
     // /speak-google liefert JSON { audio: "data:audio/mp3;base64,..." }.
@@ -179,6 +218,7 @@ export class SosTtsQueue {
     let ext: 'mp3' | 'wav';
     if (isGoogleCloud) {
       const json = (await res.json()) as { audio?: string };
+      metric?.('tts-body-done');
       const dataUri = json.audio ?? '';
       const comma = dataUri.indexOf(',');
       if (comma === -1) return null;
@@ -186,6 +226,7 @@ export class SosTtsQueue {
       ext = 'mp3';
     } else {
       const buffer = await res.arrayBuffer();
+      metric?.('tts-body-done', { bytes: buffer.byteLength });
       if (signal.aborted || buffer.byteLength === 0) return null;
       const bytes = new Uint8Array(buffer);
       const chunks: string[] = [];
@@ -203,6 +244,7 @@ export class SosTtsQueue {
     await FileSystem.writeAsStringAsync(tmpPath, base64, {
       encoding: FileSystem.EncodingType.Base64,
     });
+    metric?.('tts-file-written');
     if (signal.aborted) return null;
     return { uri: tmpPath };
   }
diff --git a/apps/rebreak-native/lib/ttsProvider.ts b/apps/rebreak-native/lib/ttsProvider.ts
index de5b870..e9a23c7 100644
--- a/apps/rebreak-native/lib/ttsProvider.ts
+++ b/apps/rebreak-native/lib/ttsProvider.ts
@@ -4,7 +4,7 @@
 import AsyncStorage from '@react-native-async-storage/async-storage';
 import { useEffect, useState } from 'react';
 
-export type TtsProvider = 'openai' | 'gemini' | 'google-cloud';
+export type TtsProvider = 'openai' | 'gemini' | 'google-cloud' | 'elevenlabs' | 'cartesia';
 
 const STORAGE_KEY = 'rebreak-sos-tts-provider';
 const DEFAULT_PROVIDER: TtsProvider = 'openai';
@@ -13,12 +13,16 @@ export const TTS_PROVIDER_LABEL: Record<TtsProvider, string> = {
   openai: 'OpenAI',
   gemini: 'Gemini',
   'google-cloud': 'Cloud',
+  elevenlabs: 'ElevenLabs',
+  cartesia: 'Cartesia',
 };
 
 export const TTS_PROVIDER_ENDPOINT: Record<TtsProvider, string> = {
   openai: '/api/coach/speak-openai',
   gemini: '/api/coach/speak-gemini',
   'google-cloud': '/api/coach/speak-google',
+  elevenlabs: '/api/coach/speak-elevenlabs',
+  cartesia: '/api/coach/speak-cartesia',
 };
 
 const listeners = new Set<(p: TtsProvider) => void>();
@@ -27,7 +31,10 @@ let cached: TtsProvider | null = null;
 export async function loadTtsProvider(): Promise<TtsProvider> {
   if (cached) return cached;
   const raw = await AsyncStorage.getItem(STORAGE_KEY).catch(() => null);
-  cached = raw === 'gemini' || raw === 'google-cloud' ? raw : DEFAULT_PROVIDER;
+  cached =
+    raw === 'gemini' || raw === 'google-cloud' || raw === 'elevenlabs' || raw === 'cartesia'
+      ? raw
+      : DEFAULT_PROVIDER;
   return cached;
 }
 
@@ -41,6 +48,13 @@ export function endpointForProvider(p: TtsProvider): string {
   return TTS_PROVIDER_ENDPOINT[p];
 }
 
+/** Always-fresh read of the current provider — module-level `cached` is updated
+ *  synchronously inside `setTtsProvider` BEFORE listeners fire, so reading this
+ *  inside any async callback sidesteps React's state-update / useRef-update lag. */
+export function currentProvider(): TtsProvider {
+  return cached ?? DEFAULT_PROVIDER;
+}
+
 export function useTtsProvider(): [TtsProvider, (p: TtsProvider) => Promise<void>] {
   const [p, setP] = useState<TtsProvider>(cached ?? DEFAULT_PROVIDER);
   useEffect(() => {
diff --git a/backend/scripts/llm-bench.sh b/backend/scripts/llm-bench.sh
new file mode 100644
index 0000000..faa73fe
--- /dev/null
+++ b/backend/scripts/llm-bench.sh
@@ -0,0 +1,219 @@
+#!/usr/bin/env bash
+# llm-bench.sh — TTFB benchmark across LLM providers für SOS-style requests.
+#
+# Misst time_starttransfer (= erste Byte vom Body) für streaming chat completions.
+# Für SSE-Endpoints korrespondiert das praktisch 1:1 mit dem ersten Token am Client.
+#
+# Usage:
+#   bash llm-bench.sh [RUNS]                # default RUNS=3
+#
+# Auf staging-server (mit Infisical):
+#   infisical run --projectId="$INFISICAL_PROJECT_ID" --env=staging --token="$TOKEN" -- \
+#     bash llm-bench.sh
+#
+# ENV vars (alle optional, fehlende → skip):
+#   OPENROUTER_API_KEY  — alle Modelle via OpenRouter
+#   ANTHROPIC_API_KEY   — Haiku/Sonnet direkt
+#   GROQ_API_KEY        — Llama via Groq direkt
+#   OPENAI_API_KEY      — GPT-4o-mini direkt
+#   GEMINI_API_KEY      — Gemini direkt (oder GOOGLE_GENERATIVE_AI_API_KEY)
+
+set -u
+
+RUNS="${1:-3}"
+
+SYSTEM_PROMPT='Du bist Lyra, eine warme empathische Begleiterin für Menschen mit Glücksspielsucht. Antworte in maximal 2-3 deutschen Sätzen, warm und ohne Belehrung. Am Ende JSON-Chips: [{"label":"...","action":"..."}]'
+USER_MSG='Ich bin gerade unter starkem Druck und denke daran, einen großen Einsatz zu machen.'
+MAX_TOK=80
+
+command -v jq >/dev/null || { echo "jq fehlt — apt install jq"; exit 1; }
+
+# ── helpers ──────────────────────────────────────────────────────────────────
+
+# curl 1× und gib TTFB in ms zurück (oder "FAIL($code)").
+ttfb_ms() {
+  local out
+  out=$(curl -s -N -o /dev/null --max-time 30 \
+        -w '%{time_starttransfer}\n%{http_code}' "$@" 2>/dev/null) || {
+    echo "ERR"; return
+  }
+  local time=$(echo "$out" | head -1)
+  local code=$(echo "$out" | tail -1)
+  if [[ "$code" != "200" ]] && [[ "$code" != "206" ]]; then
+    echo "FAIL($code)"; return
+  fi
+  awk -v s="$time" 'BEGIN { printf "%d", s * 1000 }'
+}
+
+# RUNS Iterationen, druckt Zeile mit allen Times + min/p50.
+benchN() {
+  local label="$1"; shift
+  local times=()
+  printf "  %-50s " "$label"
+  for ((i=1; i<=RUNS; i++)); do
+    t=$(ttfb_ms "$@")
+    times+=("$t")
+    printf "%-9s" "$t"
+    sleep 0.4
+  done
+  local valid=()
+  for t in "${times[@]}"; do
+    [[ "$t" =~ ^[0-9]+$ ]] && valid+=("$t")
+  done
+  if (( ${#valid[@]} > 0 )); then
+    local sorted
+    mapfile -t sorted < <(printf '%s\n' "${valid[@]}" | sort -n)
+    local n=${#sorted[@]}
+    printf " │ min=%sms p50=%sms\n" "${sorted[0]}" "${sorted[$((n/2))]}"
+  else
+    printf " │ ALL FAILED\n"
+  fi
+}
+
+# OpenAI-style streaming body (OpenAI/OpenRouter/Groq/Cerebras/Mistral nutzen alle dieses Format).
+openai_body() {
+  local model="$1"; local extra="${2:-}"
+  jq -nc \
+    --arg model "$model" \
+    --arg system "$SYSTEM_PROMPT" \
+    --arg user "$USER_MSG" \
+    --argjson maxtok "$MAX_TOK" \
+    --argjson extra "${extra:-{\}}" \
+    '{model:$model, stream:true, max_tokens:$maxtok,
+      messages:[{role:"system",content:$system},{role:"user",content:$user}]} + $extra'
+}
+
+anthropic_body() {
+  local model="$1"
+  jq -nc \
+    --arg model "$model" \
+    --arg system "$SYSTEM_PROMPT" \
+    --arg user "$USER_MSG" \
+    --argjson maxtok "$MAX_TOK" \
+    '{model:$model, stream:true, max_tokens:$maxtok, system:$system,
+      messages:[{role:"user",content:$user}]}'
+}
+
+gemini_body() {
+  jq -nc \
+    --arg system "$SYSTEM_PROMPT" \
+    --arg user "$USER_MSG" \
+    --argjson maxtok "$MAX_TOK" \
+    '{contents:[{parts:[{text:$user}]}],
+      systemInstruction:{parts:[{text:$system}]},
+      generationConfig:{maxOutputTokens:$maxtok}}'
+}
+
+# ── header ───────────────────────────────────────────────────────────────────
+echo
+echo "═══════════════════════════════════════════════════════════════════"
+echo "  LLM TTFB Benchmark — $RUNS runs each — $(date '+%Y-%m-%d %H:%M:%S')"
+country=$(curl -s --max-time 3 ipinfo.io/country 2>/dev/null || echo "?")
+ip=$(curl -s --max-time 3 ifconfig.co 2>/dev/null || echo "?")
+echo "  Source: $country / $ip"
+echo "═══════════════════════════════════════════════════════════════════"
+
+# ── via OpenRouter (default load-balanced) ───────────────────────────────────
+if [[ -n "${OPENROUTER_API_KEY:-}" ]]; then
+  echo
+  echo "── via OpenRouter (default load-balancing) ──"
+  for m in \
+    "anthropic/claude-haiku-4.5" \
+    "anthropic/claude-sonnet-4.5" \
+    "anthropic/claude-3.5-haiku" \
+    "openai/gpt-4o-mini" \
+    "google/gemini-2.0-flash-001" \
+    "meta-llama/llama-3.3-70b-instruct"
+  do
+    benchN "OR  $m" \
+      -X POST https://openrouter.ai/api/v1/chat/completions \
+      -H "Content-Type: application/json" \
+      -H "Authorization: Bearer $OPENROUTER_API_KEY" \
+      -H "HTTP-Referer: https://rebreak.org" \
+      -H "X-Title: ReBreak-Bench" \
+      -d "$(openai_body "$m")"
+  done
+
+  echo
+  echo "── via OpenRouter + provider:{sort:latency} ──"
+  for m in \
+    "anthropic/claude-haiku-4.5" \
+    "anthropic/claude-sonnet-4.5"
+  do
+    benchN "ORL $m" \
+      -X POST https://openrouter.ai/api/v1/chat/completions \
+      -H "Content-Type: application/json" \
+      -H "Authorization: Bearer $OPENROUTER_API_KEY" \
+      -H "HTTP-Referer: https://rebreak.org" \
+      -H "X-Title: ReBreak-Bench" \
+      -d "$(openai_body "$m" '{"provider":{"sort":"latency"}}')"
+  done
+else
+  echo; echo "(skip OpenRouter — OPENROUTER_API_KEY nicht gesetzt)"
+fi
+
+# ── Anthropic direct ─────────────────────────────────────────────────────────
+if [[ -n "${ANTHROPIC_API_KEY:-}" ]]; then
+  echo
+  echo "── via Anthropic direkt ──"
+  for m in claude-haiku-4-5 claude-sonnet-4-5; do
+    benchN "ANT $m" \
+      -X POST https://api.anthropic.com/v1/messages \
+      -H "Content-Type: application/json" \
+      -H "x-api-key: $ANTHROPIC_API_KEY" \
+      -H "anthropic-version: 2023-06-01" \
+      -d "$(anthropic_body "$m")"
+  done
+else
+  echo; echo "(skip Anthropic direkt — ANTHROPIC_API_KEY nicht gesetzt)"
+fi
+
+# ── OpenAI direct ────────────────────────────────────────────────────────────
+if [[ -n "${OPENAI_API_KEY:-}" ]]; then
+  echo
+  echo "── via OpenAI direkt ──"
+  for m in gpt-4o-mini gpt-4o; do
+    benchN "OAI $m" \
+      -X POST https://api.openai.com/v1/chat/completions \
+      -H "Content-Type: application/json" \
+      -H "Authorization: Bearer $OPENAI_API_KEY" \
+      -d "$(openai_body "$m")"
+  done
+else
+  echo; echo "(skip OpenAI direkt — OPENAI_API_KEY nicht gesetzt)"
+fi
+
+# ── Groq direct ──────────────────────────────────────────────────────────────
+if [[ -n "${GROQ_API_KEY:-}" ]]; then
+  echo
+  echo "── via Groq direkt (LPU hardware) ──"
+  for m in llama-3.3-70b-versatile llama-3.1-8b-instant; do
+    benchN "GRQ $m" \
+      -X POST https://api.groq.com/openai/v1/chat/completions \
+      -H "Content-Type: application/json" \
+      -H "Authorization: Bearer $GROQ_API_KEY" \
+      -d "$(openai_body "$m")"
+  done
+else
+  echo; echo "(skip Groq — GROQ_API_KEY nicht gesetzt)"
+fi
+
+# ── Gemini direct ────────────────────────────────────────────────────────────
+GEM_KEY="${GEMINI_API_KEY:-${GOOGLE_GENERATIVE_AI_API_KEY:-}}"
+if [[ -n "$GEM_KEY" ]]; then
+  echo
+  echo "── via Gemini direkt ──"
+  for m in gemini-2.0-flash gemini-1.5-flash; do
+    benchN "GEM $m" \
+      -X POST "https://generativelanguage.googleapis.com/v1beta/models/${m}:streamGenerateContent?key=${GEM_KEY}&alt=sse" \
+      -H "Content-Type: application/json" \
+      -d "$(gemini_body)"
+  done
+else
+  echo; echo "(skip Gemini direkt — GEMINI_API_KEY nicht gesetzt)"
+fi
+
+echo
+echo "═══════════════════════════════════════════════════════════════════"
+echo "  done. min = bestes TTFB, p50 = median über $RUNS Runs"
+echo "═══════════════════════════════════════════════════════════════════"
diff --git a/backend/server/api/coach/sos-session.post.ts b/backend/server/api/coach/sos-session.post.ts
index e10cab5..88da4ea 100644
--- a/backend/server/api/coach/sos-session.post.ts
+++ b/backend/server/api/coach/sos-session.post.ts
@@ -10,9 +10,10 @@
 export default defineEventHandler(async (event) => {
   const user = await requireUser(event);
   const body = await readBody(event);
-  const { messages, locale } = body as {
+  const { messages, locale, llmProvider } = body as {
     messages: Array<{ role: "user" | "assistant"; content: string }>;
     locale?: string;
+    llmProvider?: string;
   };
 
   if (!messages || !Array.isArray(messages)) {
@@ -28,6 +29,7 @@ export default defineEventHandler(async (event) => {
     userId: user.id,
     messages,
     locale: locale ?? "de",
+    llmProvider,
     createdAt: Date.now(),
   });
 
diff --git a/backend/server/api/coach/sos-stream.get.ts b/backend/server/api/coach/sos-stream.get.ts
index b370a53..c159f99 100644
--- a/backend/server/api/coach/sos-stream.get.ts
+++ b/backend/server/api/coach/sos-stream.get.ts
@@ -87,10 +87,6 @@ export default defineEventHandler(async (event) => {
   deleteSosSession(sessionId);
 
   const config = useRuntimeConfig();
-  const key = config.openrouterApiKey as string | undefined;
-  if (!key) {
-    throw createError({ statusCode: 503, message: "OpenRouter Key fehlt" });
-  }
 
   // System-Prompt: Coach-Basis + SOS-Streaming-Regeln
   const LANG: Record<string, string> = {
@@ -139,24 +135,46 @@ export default defineEventHandler(async (event) => {
     firstUserIdx > 0 ? messages.slice(firstUserIdx) : messages;
   const trimmed = conversation.slice(-8);
 
-  const upstream = await fetch(
-    "https://openrouter.ai/api/v1/chat/completions",
-    {
-      method: "POST",
-      headers: {
-        Authorization: `Bearer ${key}`,
-        "Content-Type": "application/json",
-        "HTTP-Referer": "https://rebreak.org",
-        "X-Title": "ReBreak SOS",
-      },
-      body: JSON.stringify({
-        model: "anthropic/claude-sonnet-4.5",
-        max_tokens: 400,
-        stream: true,
-        messages: [{ role: "system", content: systemPrompt }, ...trimmed],
-      }),
-    },
-  );
+  // LLM-Routing: client schickt llmProvider via /sos-session-Body (Toggle).
+  // Default openrouter-sonnet. sort:latency bei Anthropic über OR spart 30-58% TTFB
+  // (server-curl-bench gemessen). Groq bypasst OpenRouter-Hop für ~157ms TTFB.
+  const llmProvider = sessionData.llmProvider ?? "openrouter-sonnet";
+  let upstreamUrl: string;
+  let upstreamKey: string | undefined;
+  let upstreamModel: string;
+  const upstreamHeaders: Record<string, string> = { "Content-Type": "application/json" };
+  let upstreamProviderField: { sort: string } | undefined;
+  if (llmProvider === "groq-llama") {
+    upstreamUrl = "https://api.groq.com/openai/v1/chat/completions";
+    upstreamKey = config.groqApiKey as string | undefined;
+    upstreamModel = "llama-3.3-70b-versatile";
+  } else {
+    upstreamUrl = "https://openrouter.ai/api/v1/chat/completions";
+    upstreamKey = config.openrouterApiKey as string | undefined;
+    upstreamModel = llmProvider === "openrouter-haiku"
+      ? "anthropic/claude-haiku-4.5"
+      : "anthropic/claude-sonnet-4.5";
+    upstreamHeaders["HTTP-Referer"] = "https://rebreak.org";
+    upstreamHeaders["X-Title"] = "ReBreak SOS";
+    upstreamProviderField = { sort: "latency" };
+  }
+  if (!upstreamKey) {
+    throw createError({ statusCode: 503, message: `API key for ${llmProvider} fehlt` });
+  }
+  upstreamHeaders.Authorization = `Bearer ${upstreamKey}`;
+  console.log(`[coach/sos-stream] using provider=${llmProvider} model=${upstreamModel}`);
+
+  const upstream = await fetch(upstreamUrl, {
+    method: "POST",
+    headers: upstreamHeaders,
+    body: JSON.stringify({
+      model: upstreamModel,
+      max_tokens: 400,
+      stream: true,
+      messages: [{ role: "system", content: systemPrompt }, ...trimmed],
+      ...(upstreamProviderField ? { provider: upstreamProviderField } : {}),
+    }),
+  });
 
   if (!upstream.ok || !upstream.body) {
     const errText = await upstream.text().catch(() => "");
diff --git a/backend/server/api/coach/sos-stream.post.ts b/backend/server/api/coach/sos-stream.post.ts
index e8264af..6496542 100644
--- a/backend/server/api/coach/sos-stream.post.ts
+++ b/backend/server/api/coach/sos-stream.post.ts
@@ -69,10 +69,6 @@ export default defineEventHandler(async (event) => {
   deleteSosSession(sessionId);
 
   const config = useRuntimeConfig();
-  const key = config.openrouterApiKey as string | undefined;
-  if (!key) {
-    throw createError({ statusCode: 503, message: "OpenRouter Key fehlt" });
-  }
 
   // System-Prompt: Coach-Basis + SOS-Streaming-Regeln
   const LANG: Record<string, string> = {
@@ -90,24 +86,46 @@ export default defineEventHandler(async (event) => {
     firstUserIdx > 0 ? messages.slice(firstUserIdx) : messages;
   const trimmed = conversation.slice(-8);
 
-  const upstream = await fetch(
-    "https://openrouter.ai/api/v1/chat/completions",
-    {
-      method: "POST",
-      headers: {
-        Authorization: `Bearer ${key}`,
-        "Content-Type": "application/json",
-        "HTTP-Referer": "https://rebreak.org",
-        "X-Title": "ReBreak SOS",
-      },
-      body: JSON.stringify({
-        model: "anthropic/claude-sonnet-4.5",
-        max_tokens: 400,
-        stream: true,
-        messages: [{ role: "system", content: systemPrompt }, ...trimmed],
-      }),
-    },
-  );
+  // LLM-Routing: client schickt llmProvider via /sos-session-Body (Toggle).
+  // Default openrouter-sonnet. sort:latency bei Anthropic über OR spart 30-58% TTFB
+  // (server-curl-bench gemessen). Groq bypasst OpenRouter-Hop für ~157ms TTFB.
+  const llmProvider = sessionData.llmProvider ?? "openrouter-sonnet";
+  let upstreamUrl: string;
+  let upstreamKey: string | undefined;
+  let upstreamModel: string;
+  const upstreamHeaders: Record<string, string> = { "Content-Type": "application/json" };
+  let upstreamProviderField: { sort: string } | undefined;
+  if (llmProvider === "groq-llama") {
+    upstreamUrl = "https://api.groq.com/openai/v1/chat/completions";
+    upstreamKey = config.groqApiKey as string | undefined;
+    upstreamModel = "llama-3.3-70b-versatile";
+  } else {
+    upstreamUrl = "https://openrouter.ai/api/v1/chat/completions";
+    upstreamKey = config.openrouterApiKey as string | undefined;
+    upstreamModel = llmProvider === "openrouter-haiku"
+      ? "anthropic/claude-haiku-4.5"
+      : "anthropic/claude-sonnet-4.5";
+    upstreamHeaders["HTTP-Referer"] = "https://rebreak.org";
+    upstreamHeaders["X-Title"] = "ReBreak SOS";
+    upstreamProviderField = { sort: "latency" };
+  }
+  if (!upstreamKey) {
+    throw createError({ statusCode: 503, message: `API key for ${llmProvider} fehlt` });
+  }
+  upstreamHeaders.Authorization = `Bearer ${upstreamKey}`;
+  console.log(`[coach/sos-stream] using provider=${llmProvider} model=${upstreamModel}`);
+
+  const upstream = await fetch(upstreamUrl, {
+    method: "POST",
+    headers: upstreamHeaders,
+    body: JSON.stringify({
+      model: upstreamModel,
+      max_tokens: 400,
+      stream: true,
+      messages: [{ role: "system", content: systemPrompt }, ...trimmed],
+      ...(upstreamProviderField ? { provider: upstreamProviderField } : {}),
+    }),
+  });
 
   if (!upstream.ok || !upstream.body) {
     const errText = await upstream.text().catch(() => "");
diff --git a/backend/server/api/coach/speak-cartesia.post.ts b/backend/server/api/coach/speak-cartesia.post.ts
new file mode 100644
index 0000000..442d941
--- /dev/null
+++ b/backend/server/api/coach/speak-cartesia.post.ts
@@ -0,0 +1,70 @@
+/**
+ * POST /api/coach/speak-cartesia
+ * Cartesia Sonic-2 — schnellstes TTS (~75ms first-byte), native German.
+ *
+ * Returns audio/mpeg. Voice via runtimeConfig.cartesiaVoiceId
+ * (Fallback `b9de4a89-2257-424b-94c2-db18ba68c81a` wenn unset).
+ */
+const FALLBACK_VOICE_ID = "b9de4a89-2257-424b-94c2-db18ba68c81a";
+
+export default defineEventHandler(async (event) => {
+  await requireUser(event);
+
+  const body = await readBody(event);
+  const { text } = body as { text: string };
+
+  if (!text?.trim()) {
+    throw createError({ statusCode: 400, message: "text fehlt" });
+  }
+
+  const config = useRuntimeConfig();
+  const key =
+    (config.cartesiaApiKey as string) || process.env.CARTESIA_API_KEY || "";
+  const voiceId =
+    (config.cartesiaVoiceId as string) ||
+    process.env.CARTESIA_VOICE_ID ||
+    FALLBACK_VOICE_ID;
+
+  if (!key) {
+    throw createError({
+      statusCode: 503,
+      message: "CARTESIA_API_KEY nicht konfiguriert",
+    });
+  }
+
+  const upstream = await fetch("https://api.cartesia.ai/tts/bytes", {
+    method: "POST",
+    headers: {
+      "X-API-Key": key,
+      "Cartesia-Version": "2024-11-13",
+      "Content-Type": "application/json",
+    },
+    body: JSON.stringify({
+      model_id: "sonic-2",
+      transcript: text.slice(0, 4096),
+      voice: { mode: "id", id: voiceId },
+      output_format: {
+        container: "mp3",
+        sample_rate: 22050,
+        bit_rate: 64000,
+      },
+      language: "de",
+    }),
+  });
+
+  if (!upstream.ok || !upstream.body) {
+    const err = await upstream.text().catch(() => "");
+    console.error("[speak-cartesia] error:", upstream.status, err);
+    throw createError({
+      statusCode: 502,
+      message: "Cartesia TTS fehlgeschlagen",
+    });
+  }
+
+  setHeader(event, "Content-Type", "audio/mpeg");
+  setHeader(event, "Cache-Control", "no-store");
+
+  const { Readable } = await import("node:stream");
+  const nodeStream = Readable.fromWeb(upstream.body as never);
+  return sendStream(event, nodeStream);
+});
diff --git a/backend/server/api/coach/speak-elevenlabs.post.ts b/backend/server/api/coach/speak-elevenlabs.post.ts
new file mode 100644
index 0000000..1cf45a6
--- /dev/null
+++ b/backend/server/api/coach/speak-elevenlabs.post.ts
@@ -0,0 +1,95 @@
+/**
+ * POST /api/coach/speak-elevenlabs
+ * ElevenLabs eleven_multilingual_v2 — voice via runtimeConfig.elevenlabsVoiceId
+ * (default: Alexandra `kdmDKE6EkgrWrrykO9Qt` als Fallback wenn unset).
+ *
+ * Returns audio/mpeg. Voice ist deterministisch konstant über mehrere Calls
+ * — identisch zu Gemini-Verhalten, kein Mode-Switch wie bei gpt-4o-mini-tts.
+ */
+const FALLBACK_VOICE_ID = "kdmDKE6EkgrWrrykO9Qt"; // Alexandra
+
+export default defineEventHandler(async (event) => {
+  await requireUser(event);
+
+  const body = await readBody(event);
+  const { text } = body as { text: string };
+
+  if (!text?.trim()) {
+    throw createError({ statusCode: 400, message: "text fehlt" });
+  }
+
+  const config = useRuntimeConfig();
+  // Fallback chain: runtimeConfig (Nuxt build-time) → process.env (runtime injection
+  // via Infisical at pm2-start). Stellt sicher dass auch dann ein Key vorhanden ist
+  // wenn nuxt's runtimeConfig-Inflate den process.env-Wert nicht mit-bundelt.
+  const key =
+    (config.elevenlabsApiKey as string) || process.env.ELEVENLABS_API_KEY || "";
+  const voiceId =
+    (config.elevenlabsVoiceId as string) ||
+    process.env.ELEVENLABS_VOICE_ID ||
+    FALLBACK_VOICE_ID;
+
+  console.log(
+    "[speak-elevenlabs] cfg-key:",
+    !!config.elevenlabsApiKey,
+    "env-key:",
+    !!process.env.ELEVENLABS_API_KEY,
+    "key-len:",
+    key.length,
+    "voice:",
+    voiceId,
+  );
+
+  if (!key) {
+    throw createError({
+      statusCode: 503,
+      message: "ELEVENLABS_API_KEY nicht konfiguriert",
+    });
+  }
+
+  console.log("[speak-elevenlabs] CALL recv, text-len=", text?.length ?? 0, "voice=", voiceId);
+
+  // /stream endpoint + optimize_streaming_latency=4 (max-latency-optimized,
+  // marginal weniger Quality). ElevenLabs sendet erste Bytes ~200-300ms statt
+  // 600-1000ms beim non-stream endpoint.
+  const upstream = await fetch(
+    `https://api.elevenlabs.io/v1/text-to-speech/${voiceId}/stream?optimize_streaming_latency=4`,
+    {
+      method: "POST",
+      headers: {
+        "xi-api-key": key,
+        "Content-Type": "application/json",
+        Accept: "audio/mpeg",
+      },
+      body: JSON.stringify({
+        text: text.slice(0, 4096),
+        // Turbo v2.5: ~50% schneller als multilingual_v2, marginal niedrigere
+        // Quality — Trade-off lohnt sich für SOS (latency > Studio-Polish).
+        model_id: "eleven_turbo_v2_5",
+        voice_settings: {
+          stability: 0.5,
+          similarity_boost: 0.75,
+          style: 0.3,
+          use_speaker_boost: true,
+        },
+        output_format: "mp3_22050_32",
+      }),
+    },
+  );
+
+  if (!upstream.ok || !upstream.body) {
+    const err = await upstream.text().catch(() => "");
+    console.error("[speak-elevenlabs] error:", upstream.status, err);
+    throw createError({
+      statusCode: 502,
+      message: "ElevenLabs TTS fehlgeschlagen",
+    });
+  }
+
+  setHeader(event, "Content-Type", "audio/mpeg");
+  setHeader(event, "Cache-Control", "no-store");
+
+  const { Readable } = await import("node:stream");
+  const nodeStream = Readable.fromWeb(upstream.body as never);
+  return sendStream(event, nodeStream);
+});
diff --git a/backend/server/api/coach/speak-gemini.post.ts b/backend/server/api/coach/speak-gemini.post.ts
index de7e945..a2297c3 100644
--- a/backend/server/api/coach/speak-gemini.post.ts
+++ b/backend/server/api/coach/speak-gemini.post.ts
@@ -55,6 +55,17 @@ export default defineEventHandler(async (event) => {
     });
   }
 
+  // Gemini-TTS interpretiert den raw `text`-Part manchmal als Prompt
+  // statt als Vorlese-Auftrag (wenn Lyra-Antwort z.B. mit `?` endet → Modell
+  // versucht zu antworten → 400 INVALID_ARGUMENT). Instruction-Prefix zwingt
+  // strict-TTS-Mode + setzt warm-empathic-Tone für SOS.
+  const promptText =
+    "Read the following German text aloud, verbatim, in a warm, gentle, " +
+    "empathic voice — like a calm friend on the phone. Speak slowly with " +
+    "natural pauses. Soft delivery, low energy, no fake-cheerfulness. " +
+    "Do not respond to or comment on the text — just read it.\n\n" +
+    text.slice(0, 4096);
+
   const upstream = await fetch(
     "https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash-preview-tts:generateContent",
     {
@@ -64,7 +75,7 @@ export default defineEventHandler(async (event) => {
         "x-goog-api-key": key,
       },
       body: JSON.stringify({
-        contents: [{ parts: [{ text: text.slice(0, 4096) }] }],
+        contents: [{ parts: [{ text: promptText }] }],
         generationConfig: {
           responseModalities: ["AUDIO"],
           speechConfig: {
diff --git a/backend/server/utils/sosSessions.ts b/backend/server/utils/sosSessions.ts
index 4cbdd2b..59ffc28 100644
--- a/backend/server/utils/sosSessions.ts
+++ b/backend/server/utils/sosSessions.ts
@@ -10,6 +10,8 @@ type SosSessionData = {
   userId: string;
   messages: Array<{ role: "user" | "assistant"; content: string }>;
   locale: string;
+  /** A/B-Test: client wählt LLM via Toggle. Default openrouter-sonnet. */
+  llmProvider?: string;
   createdAt: number;
 };
 
diff --git a/ops/nginx/db-staging.rebreak.org.conf b/ops/nginx/db-staging.rebreak.org.conf
new file mode 100644
index 0000000..4fb4ae3
--- /dev/null
+++ b/ops/nginx/db-staging.rebreak.org.conf
@@ -0,0 +1,65 @@
+server {
+    listen 80;
+    server_name db-staging.rebreak.org;
+    return 301 https://db-staging.rebreak.org$request_uri;
+}
+
+server {
+    listen 443 ssl;
+    server_name db-staging.rebreak.org;
+
+    ssl_certificate     /etc/letsencrypt/live/db-staging.rebreak.org/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/db-staging.rebreak.org/privkey.pem;
+
+    location = / {
+        default_type application/json;
+        return 200 '{"status":"ok","env":"staging"}';
+    }
+
+    # Direct WebSocket proxy to Supabase Realtime Rebreak-Staging (bypasses Kong)
+    # Port 54353 is mapped from the realtime-rebreak-staging container in docker-compose.rebreak-staging.yml
+    location /realtime/v1/ {
+        rewrite ^/realtime/v1/(.*)$ /socket/$1 break;
+        proxy_pass http://127.0.0.1:54353;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "upgrade";
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_read_timeout 3600s;
+        proxy_send_timeout 3600s;
+    }
+
+    location / {
+        client_max_body_size 50M;
+
+        if ($request_method = OPTIONS) {
+            add_header Access-Control-Allow-Origin      $http_origin always;
+            add_header Access-Control-Allow-Credentials "true" always;
+            add_header Access-Control-Allow-Methods     "GET, POST, PUT, DELETE, PATCH, OPTIONS" always;
+            add_header Access-Control-Allow-Headers     "Authorization, apikey, x-client-info, content-type, range, x-upsert, accept, prefer, x-supabase-api-version, accept-profile, content-profile" always;
+            add_header Access-Control-Max-Age           3600 always;
+            return 204;
+        }
+
+        proxy_pass http://127.0.0.1:54351;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade           $http_upgrade;
+        proxy_set_header Connection        "upgrade";
+        proxy_set_header Host              $host;
+        proxy_set_header X-Real-IP         $remote_addr;
+        proxy_set_header X-Forwarded-For   $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+
+        proxy_hide_header Access-Control-Allow-Origin;
+        proxy_hide_header Access-Control-Allow-Credentials;
+        proxy_hide_header Access-Control-Allow-Methods;
+        proxy_hide_header Access-Control-Allow-Headers;
+        proxy_hide_header Access-Control-Expose-Headers;
+
+        add_header Access-Control-Allow-Origin      $http_origin always;
+        add_header Access-Control-Allow-Credentials "true" always;
+    }
+}
diff --git a/ops/nginx/db.rebreak.org.conf b/ops/nginx/db.rebreak.org.conf
new file mode 100644
index 0000000..273ae4c
--- /dev/null
+++ b/ops/nginx/db.rebreak.org.conf
@@ -0,0 +1,64 @@
+server {
+    listen 80;
+    server_name db.rebreak.org;
+    return 301 https://db.rebreak.org$request_uri;
+}
+
+server {
+    listen 443 ssl;
+    server_name db.rebreak.org;
+
+    ssl_certificate     /etc/letsencrypt/live/db.rebreak.org/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/db.rebreak.org/privkey.pem;
+
+    location = / {
+        default_type application/json;
+        return 200 '{"status":"ok"}';
+    }
+
+    # Direct WebSocket proxy to Supabase Realtime (bypasses Kong)
+    location /realtime/v1/ {
+        rewrite ^/realtime/v1/(.*)$ /socket/$1 break;
+        proxy_pass http://172.19.0.27:4000;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "upgrade";
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_read_timeout 3600s;
+        proxy_send_timeout 3600s;
+    }
+
+    location / {
+        client_max_body_size 50M;
+
+        if ($request_method = OPTIONS) {
+            add_header Access-Control-Allow-Origin      $http_origin always;
+            add_header Access-Control-Allow-Credentials "true" always;
+            add_header Access-Control-Allow-Methods     "GET, POST, PUT, DELETE, PATCH, OPTIONS" always;
+            add_header Access-Control-Allow-Headers     "Authorization, apikey, x-client-info, content-type, range, x-upsert, accept, prefer, x-supabase-api-version, accept-profile, content-profile" always;
+            add_header Access-Control-Max-Age           3600 always;
+            return 204;
+        }
+
+        proxy_pass http://127.0.0.1:54321;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade           $http_upgrade;
+        proxy_set_header Connection        "upgrade";
+        proxy_set_header Host              $host;
+        proxy_set_header X-Real-IP         $remote_addr;
+        proxy_set_header X-Forwarded-For   $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+
+        proxy_hide_header Access-Control-Allow-Origin;
+        proxy_hide_header Access-Control-Allow-Credentials;
+        proxy_hide_header Access-Control-Allow-Methods;
+        proxy_hide_header Access-Control-Allow-Headers;
+        proxy_hide_header Access-Control-Expose-Headers;
+
+        add_header Access-Control-Allow-Origin      $http_origin always;
+        add_header Access-Control-Allow-Credentials "true" always;
+    }
+}
diff --git a/ops/nginx/dns-staging.rebreak.de.conf b/ops/nginx/dns-staging.rebreak.de.conf
new file mode 100644
index 0000000..943ea9e
--- /dev/null
+++ b/ops/nginx/dns-staging.rebreak.de.conf
@@ -0,0 +1,32 @@
+server {
+    listen 80;
+    server_name dns-staging.rebreak.de;
+    return 301 https://dns-staging.rebreak.de$request_uri;
+}
+
+server {
+    listen 443 ssl;
+    server_name dns-staging.rebreak.de;
+
+    ssl_certificate     /etc/letsencrypt/live/staging.rebreak.org/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/staging.rebreak.org/privkey.pem;
+    include /etc/letsencrypt/options-ssl-nginx.conf;
+    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
+
+    location /dns-query {
+        proxy_pass http://127.0.0.1:5354/dns-query;
+        proxy_http_version 1.1;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_connect_timeout 5s;
+        proxy_send_timeout 10s;
+        proxy_read_timeout 10s;
+    }
+
+    location /health {
+        return 200 "OK\n";
+        add_header Content-Type text/plain;
+    }
+}
\ No newline at end of file
diff --git a/ops/nginx/rebreak.org.conf b/ops/nginx/rebreak.org.conf
new file mode 100644
index 0000000..ee389ec
--- /dev/null
+++ b/ops/nginx/rebreak.org.conf
@@ -0,0 +1,28 @@
+server {
+    listen 80;
+    server_name rebreak.org www.rebreak.org;
+    return 301 https://rebreak.org$request_uri;
+}
+
+server {
+    listen 443 ssl;
+    server_name rebreak.org;
+
+    ssl_certificate     /etc/letsencrypt/live/rebreak.org/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/rebreak.org/privkey.pem;
+
+    location / {
+        auth_basic "ReBreak – Coming Soon";
+        auth_basic_user_file /etc/nginx/.htpasswd-rebreak;
+
+        client_max_body_size 10m;
+        proxy_pass http://127.0.0.1:3015;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "upgrade";
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+}
diff --git a/ops/nginx/staging.rebreak.org.conf b/ops/nginx/staging.rebreak.org.conf
new file mode 100644
index 0000000..3d7507a
--- /dev/null
+++ b/ops/nginx/staging.rebreak.org.conf
@@ -0,0 +1,41 @@
+server {
+    listen 80;
+    server_name staging.rebreak.org;
+    return 301 https://staging.rebreak.org$request_uri;
+}
+
+server {
+    listen 443 ssl;
+    server_name staging.rebreak.org;
+
+    ssl_certificate     /etc/letsencrypt/live/staging.rebreak.org/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/staging.rebreak.org/privkey.pem;
+    include /etc/letsencrypt/options-ssl-nginx.conf;
+    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
+
+    add_header X-Robots-Tag "noindex, nofollow" always;
+
+    # Mailpit – Mail-Catcher Web UI + REST API (nur für Staging/Cypress)
+    location /mailpit/ {
+        proxy_pass http://127.0.0.1:54360/;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade       $http_upgrade;
+        proxy_set_header Connection    "upgrade";
+        proxy_set_header Host          $host;
+        proxy_set_header X-Real-IP     $remote_addr;
+        proxy_set_header X-Forwarded-For   $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    location / {
+        client_max_body_size 10m;
+        proxy_pass http://127.0.0.1:3016;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade       $http_upgrade;
+        proxy_set_header Connection    "upgrade";
+        proxy_set_header Host          $host;
+        proxy_set_header X-Real-IP     $remote_addr;
+        proxy_set_header X-Forwarded-For   $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+}
diff --git a/ops/nginx/studio-staging.rebreak.org.conf b/ops/nginx/studio-staging.rebreak.org.conf
new file mode 100644
index 0000000..87357c7
--- /dev/null
+++ b/ops/nginx/studio-staging.rebreak.org.conf
@@ -0,0 +1,22 @@
+server {
+    listen 80;
+    server_name studio-staging.rebreak.org;
+    return 301 https://studio-staging.rebreak.org$request_uri;
+}
+
+server {
+    listen 443 ssl;
+    server_name studio-staging.rebreak.org;
+
+    ssl_certificate     /etc/letsencrypt/live/studio-staging.rebreak.org/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/studio-staging.rebreak.org/privkey.pem;
+
+    location / {
+        proxy_pass http://127.0.0.1:54332;
+        proxy_http_version 1.1;
+        proxy_set_header Host              $host;
+        proxy_set_header X-Real-IP         $remote_addr;
+        proxy_set_header X-Forwarded-For   $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+}
diff --git a/ops/nginx/studio.rebreak.org.conf b/ops/nginx/studio.rebreak.org.conf
new file mode 100644
index 0000000..f99a9fc
--- /dev/null
+++ b/ops/nginx/studio.rebreak.org.conf
@@ -0,0 +1,22 @@
+server {
+    listen 80;
+    server_name studio.rebreak.org;
+    return 301 https://studio.rebreak.org$request_uri;
+}
+
+server {
+    listen 443 ssl;
+    server_name studio.rebreak.org;
+
+    ssl_certificate     /etc/letsencrypt/live/studio.rebreak.org/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/studio.rebreak.org/privkey.pem;
+
+    location / {
+        proxy_pass http://127.0.0.1:54322;
+        proxy_http_version 1.1;
+        proxy_set_header Host              $host;
+        proxy_set_header X-Real-IP         $remote_addr;
+        proxy_set_header X-Forwarded-For   $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+}
diff --git a/xgit b/xgit
new file mode 100755
index 0000000..fb77601
--- /dev/null
+++ b/xgit
@@ -0,0 +1,53 @@
+#!/usr/bin/env zsh
+set -euo pipefail
+
+# rebreak-monorepo helper: git add . + commit + push origin <current-branch>.
+# Usage: ./xgit "fix(backend/sos): single-instruction tts"
+# Wenn keine Message: prompted interaktiv.
+# Wenn Backend-Files geändert: bietet pre-push nitro build an (optional).
+
+if ! git rev-parse --git-dir > /dev/null 2>&1; then
+  echo "Error: aktuelles Verzeichnis ist kein Git-Repository" >&2
+  exit 1
+fi
+
+if [ "$#" -gt 0 ]; then
+  msg="$*"
+else
+  printf "Commit message: " >&2
+  read -r msg
+fi
+
+if [ -z "${msg// /}" ]; then
+  echo "Abbruch: Commit-Message leer" >&2
+  exit 1
+fi
+
+# Backend-Files staged? → Build-Validation anbieten.
+if git status --porcelain | grep -qE '^.. backend/(server|prisma|nitro\.config)' 2>/dev/null; then
+  printf "Backend-Files geändert. nitro build vor push? [Y/n] " >&2
+  read -r run_build
+  if [[ "$run_build" != "n" && "$run_build" != "N" ]]; then
+    echo "Starte nitro build..."
+    (cd backend && pnpm build) || { echo "Build fehlgeschlagen – Commit abgebrochen." >&2; exit 1; }
+    echo ""
+  fi
+fi
+
+echo "Staging alle Änderungen..."
+git add .
+
+if git diff --cached --quiet; then
+  echo "Keine Änderungen zum Commit vorhanden." >&2
+  exit 0
+fi
+
+echo "Erstelle Commit: $msg"
+git commit -m "$msg"
+
+branch=$(git rev-parse --abbrev-ref HEAD)
+
+echo "Pushe Branch $branch nach origin..."
+git push origin "$branch"
+
+echo "Fertig."