Specify STT language for Telnyx AI Agents

Telnyx is excited to announce that you can now specify the speech-to-text (STT) language for your AI Agents. Voice interactions often occur in languages other than English, like Spanish, French, Polish, and more. Relying on auto-detection for STT increases risk of transcription errors, compliance gaps, and downstream automation failures.

What’s new

• Language selection for speech-to-text. Set a specific language code for your AI Agent, not just “auto-detect.”
• Improved transcription accuracy. Fewer mistakes when a single language is expected, especially for non-English voices.
• Streamlined configuration. Pick your preferred language directly in the AI Assistant Builder.
• Better compliance support. More reliable transcripts for regulated industries.

Why it matters

For organizations with high call volumes and strict compliance needs, selecting your speech-to-text language means fewer critical errors, faster automation, and stronger audit trails. Configure your language of choice, verify with a test call, and keep your voice communications clear and reliable.

Getting started

1. Sign up or log in to your Telnyx Mission Control Portal account.
2. Navigate to the AI Assistants section.
3. In your Agent, choose the openai/whisper-large-v3-turbo transcription model.
4. Select your language of choice.
5. Test your assistant directly within the AI Assistant Builder.