# Agent Builder agent joins room and publishes audio, but no speech in preview or production (dispatch Jakt) **URL:** \ **Category:** Agents\ **Tags:** agent-builder, agent-development, livekit-cloud\ **Created:** [May 29, 2026, 3:50pm UTC](https://community.livekit.io/t/agent-builder-agent-joins-room-and-publishes-audio-but-no-speech-in-preview-or-production-dispatch-jakt/1282 "2026-05-29T15:50:26Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Alex\_Levy](https://sea1.discourse-cdn.com/flex001/user_avatar/community.livekit.io/alex_levy/32/1493_2.png) [@Alex\_Levy](https://community.livekit.io/u/Alex_Levy)\ **Post date:** [May 29, 2026, 3:50pm UTC](https://community.livekit.io/t/agent-builder-agent-joins-room-and-publishes-audio-but-no-speech-in-preview-or-production-dispatch-jakt/1282/1 "2026-05-29T15:50:26Z")
Hi LiveKit team — I’m debugging a voice agent built with **Agent Builder** and dispatched from our mobile app. The agent **connects** to the room but **never speaks** , including in the **Builder preview** in the dashboard (so this doesn’t look like a client-only issue). **Setup** - LiveKit Cloud project on the **Build** plan - Agent name / dispatch: **`Jakt`** (explicit dispatch via `AgentDispatchService/CreateDispatch`) - Pipeline: STT-LLM-TTS via **LiveKit Inference** (models configured in Builder; e.g. Deepgram nova-3, OpenAI `gpt-5.2-chat`, ElevenLabs / Cartesia TTS) - Optional job metadata: `user_name`, `conversation_memory`, `userId`, `e2eeKey`, `roomType: agent_companion` - End-of-call summary webhook to our backend (works for history; separate from the speech issue) **Expected** - Welcome greeting on join (when enabled), then normal voice conversation in Builder preview and in production calls from our app. **Actual** - Agent participant appears in the room (`agent-AJ_…` identity) - Our client shows **2 participants** , **1 remote audio track** , LiveKit status **connected** - **No audible speech** from the agent (no greeting, no response after we speak) - Same behavior in **Agent Builder preview** in the browser (after redeploy) - Waiting 15–20s doesn’t help (we ruled out cold start alone) **What we’ve ruled out** - `create-agent-room` failing before join — we reach the room successfully (no client error toast) - Agent not joining — participant count is 2 and remote audio track count is 1 - Inference credits fully exhausted on Build — May usage still shows **$0** with STT/TTS/LLM usage present **May 2026 usage (Build plan, $0 total) — confusing signal** - Agent session minutes: **1** (of 1,000 included) - WebRTC participant minutes: **585** - STT (Deepgram nova-3): **4 min** - TTS: ElevenLabs ~2,286 chars + Cartesia ~149 chars - LLM (OpenAI gpt-5.2-chat): ~11.6k input / ~849 output / ~38.8k cached tokens So some inference activity exists, but **agent session minutes are almost zero** while WebRTC minutes are high. Not sure if that’s expected or a clue. **Questions** 1. What typically causes **connected agent + remote audio track but silence** , when **Builder preview is also silent**? 2. Should we expect **agent session minutes** to track these calls, or only certain session types (preview vs dispatched production)? 3. Any known issues with **metadata / prompt templates** (`{{metadata.user_name}}`, large `conversation_memory`) causing the pipeline to fail without obvious UI errors? 4. Where should we look for errors — **Agent insights** (production sessions only?), agent worker logs, or a specific dashboard for Inference failures? 5. Anything on **Build plan limits** (inference concurrency, agent sessions) that would present as silence rather than a clear error? Happy to share a **session ID / room name / job ID** and enable support access if you point us to the right place. Thanks! ---
**Author:** ![CWilson](https://sea1.discourse-cdn.com/flex001/user_avatar/community.livekit.io/cwilson/32/135_2.png) [@CWilson](https://community.livekit.io/u/CWilson)\ **Post date:** [May 29, 2026, 3:56pm UTC](https://community.livekit.io/t/agent-builder-agent-joins-room-and-publishes-audio-but-no-speech-in-preview-or-production-dispatch-jakt/1282/2 "2026-05-29T15:56:15Z")
Do you have a session ID? If you have agent insights enabled, can you share the agent’s insights with LiveKit staff and the session ID that you shared? Go here `https://cloud.livekit.io/projects/p_/sessions/` find a session that had the issue and open it. There is an agent insight tab click share-\>check share with LiveKit staff. If you have not enabled Agent Insights already, go here `https://cloud.livekit.io/projects/p_settings/project` scroll down to `Data and privacy` and enable. It can take some time for it to take effect and you may need to redeploy your agent. ---
**Author:** ![Alex\_Levy](https://sea1.discourse-cdn.com/flex001/user_avatar/community.livekit.io/alex_levy/32/1493_2.png) [@Alex\_Levy](https://community.livekit.io/u/Alex_Levy)\ **Post date:** [May 29, 2026, 4:18pm UTC](https://community.livekit.io/t/agent-builder-agent-joins-room-and-publishes-audio-but-no-speech-in-preview-or-production-dispatch-jakt/1282/3 "2026-05-29T16:18:45Z")
> **[LiveKit Cloud](https://cloud.livekit.io/login)** > > Build applications that can see, hear, and speak with LiveKit Cloud, an end-to-end developer platform for voice, video, and physical AI. Session ID : RM\_yFNTGE9KuBTH - llm\_request\_run: APIStatusError: message=“Error code: 429 - {‘type’: ‘inference\_quota\_exceeded’, ‘error’: ‘LLM token credit quota exceeded, category: MaxGatewayCredits, remaining\_limit: 0, current\_usage: 0, session\_id: 22c9a5d8-20ea-4041-a1e3-5dd4876cf0bc, project\_id: p\_4ee2vhipoer, status: QuotaStatusExceeded’, ‘hint’: ‘LLM token credit quota exhausted. Wait for the next billing cycle or upgrade your plan.’, ‘documentation\_url’: ’ [Pricing | LiveKit](https://livekit.com/pricing) ', ‘quota\_type’: ‘llm’, ‘category’: ‘MaxGatewayCredits’, ‘current\_usage’: ‘0’, ‘remaining\_limit’: ‘0’, ‘max\_allowed’: ‘0’, ‘status’: ‘QuotaStatusExceeded’, ‘free\_tier’: ‘true’, ‘session\_id’: ‘22c9a5d8-20ea-4041-a1e3-5dd4876cf0bc’, ‘project\_id’: ‘p\_4ee2vhipoer’}”, status\_code=429, retryable=True, body=LLM token credit quota exceeded, category: MaxGatewayCredits, remaining\_limit: 0, current\_usage: 0, session\_id: 22c9a5d8-20ea-4041-a1e3-5dd4876cf0bc, project\_id: p\_4ee2vhipoer, status: QuotaStatusExceeded - llm\_request\_run: APIStatusError: message=“Error code: 429 - {‘type’: ‘inference\_quota\_exceeded’, ‘error’: ‘LLM token credit quota exceeded, category: MaxGatewayCredits, remaining\_limit: 0, current\_usage: 0, session\_id: 2685a711-7e64-46b0-a0ad-c914251f8a44, project\_id: p\_4ee2vhipoer, status: QuotaStatusExceeded’, ‘hint’: ‘LLM token credit quota exhausted. Wait for the next billing cycle or upgrade your plan.’, ‘documentation\_url’: ’ [Pricing | LiveKit](https://livekit.com/pricing) ', ‘quota\_type’: ‘llm’, ‘category’: ‘MaxGatewayCredits’, ‘current\_usage’: ‘0’, ‘remaining\_limit’: ‘0’, ‘max\_allowed’: ‘0’, ‘status’: ‘QuotaStatusExceeded’, ‘free\_tier’: ‘true’, ‘session\_id’: ‘2685a711-7e64-46b0-a0ad-c914251f8a44’, ‘project\_id’: ‘p\_4ee2vhipoer’}”, status\_code=429, retryable=True, body=LLM token credit quota exceeded, category: MaxGatewayCredits, remaining\_limit: 0, current\_usage: 0, session\_id: 2685a711-7e64-46b0-a0ad-c914251f8a44, project\_id: p\_4ee2vhipoer, status: QuotaStatusExceeded ---
**Author:** ![CWilson](https://sea1.discourse-cdn.com/flex001/user_avatar/community.livekit.io/cwilson/32/135_2.png) [@CWilson](https://community.livekit.io/u/CWilson)\ **Post date:** [May 29, 2026, 5:02pm UTC](https://community.livekit.io/t/agent-builder-agent-joins-room-and-publishes-audio-but-no-speech-in-preview-or-production-dispatch-jakt/1282/4 "2026-05-29T17:02:49Z")
> [@Alex\_Levy](#): > > inference\_quota\_exceeded Looks like you are probably out of inference credits? “inference\_quota\_exceeded” > status: QuotaStatusExceeded’, ‘hint’: ‘LLM token credit quota exhausted. Wait for the next billing cycle or upgrade your plan.’, ‘documentation\_url’: `https://livekit.com/pricing`