---
title: AssemblyAI STT Now Available via API and Mission Control
canonical: https://telnyx.com/release-notes/assemblyai-stt-api-mission-control
---
# AssemblyAI STT Now Available via API and Mission Control

[Release notes](https://telnyx.com/release-notes)

# AssemblyAI STT Now Available via API and Mission Control

### 7, May 2026

AssemblyAI Universal-Streaming is now available as a speech-to-text option through the Telnyx STT API and Mission Control, adding low-latency transcription with built-in turn detection for voice agents.

### What's New

* **AssemblyAI STT via API:** The `assemblyai/universal-streaming` model is now available for real-time speech-to-text transcription through the STT API, with built-in end-of-turn detection for voice agent workflows.
* **AssemblyAI STT in Mission Control:** Select AssemblyAI as a transcription model when configuring Voice AI Assistants in Mission Control.

### How It Works

AssemblyAI STT uses the model ID `assemblyai/universal-streaming` for real-time transcription with low latency and automatic turn detection, so your voice agent knows when the caller has finished speaking.

Supported languages: English, Spanish, German, French, Portuguese, and Italian.

### Why It Matters

Developers building voice agents now have another low-latency STT option alongside Deepgram Flux, with AssemblyAI's Universal-Streaming model providing turn detection out of the box. This gives more flexibility to choose the STT engine that fits your accuracy, language, and latency requirements.

### Getting Started

Via the API:

* **STT:** Set model to `assemblyai/universal-streaming` in your [STT API](https://developers.telnyx.com/docs/voice/stt/models) or WebSocket requests. See the [transcription settings documentation](https://developers.telnyx.com/docs/inference/ai-assistants/transcription-settings) for model details.

In Mission Control:

1. Go to AI Assistants and choose an assistant to edit
2. In the Transcription tab, select `assemblyai/universal-streaming` from the Transcription Model dropdown
3. Save your assistant

[Start building](https://telnyx.com/sign-up)

### Ask AI

* [![GPT](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/chatgpt_icon-ea55e09d.jpeg?width=92&format=webp)](https://chat.openai.com/?q=What makes Telnyx's global network different, breakdown call quality for normal phone calls and voice AI calls.)
* [![Claude](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/claude_icon-c7c8eef3.webp?width=92&format=webp)](https://claude.ai/new?q=What makes Telnyx's global network different, breakdown call quality for normal phone calls and voice AI calls.)
* [![Perplexity](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/perplexity_icon-cd5b74f1.webp?width=92&format=webp)](https://www.perplexity.ai/search?q=What makes Telnyx's global network different, breakdown call quality for normal phone calls and voice AI calls.)
* [![Gemini](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/gemini_icon-4ff1cbf4.webp?width=92&format=webp)](https://www.google.com/search?udm=50&aep=11&q=What makes Telnyx's global network different, breakdown call quality for normal phone calls and voice AI calls.)
* [![Grok](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/grok_icon-e588e5bd.webp?width=92&format=webp)](https://x.com/i/grok?text=What makes Telnyx's global network different, breakdown call quality for normal phone calls and voice AI calls.)