Release notes

Inworld Realtime TTS 2 is now available through Telnyx APIs and Voice AI Assistants, extending expressive realtime voices to both standalone API usage and managed agents.

Test the first open-weight model to combine frontier coding and agent capabilities on Telnyx infrastructure.

Kimi K2.6, Moonshot AI's flagship open-weight agentic model with a 256K context window, is now available as a model option for Telnyx AI Assistants in the US region.

Telnyx Verify now supports WhatsApp, so you can deliver one-time passcodes (OTPs) to users over WhatsApp using approved authentication templates. This gives businesses another verification channel...

We have expanded our two-way local voice coverage by adding three new hard-to-get destinations: Egypt, Iraq, and Qatar. This expansion brings our local calling availability to 93 countries,...

Telnyx Conversation Relay streams transcribed conversation text over WebSockets, so you can integrate voice calls with text-based AI workflows without handling raw audio.

Deepgram Flux Multilingual STT is now available for LiveKit agents on Telnyx, with automatic language detection and the same low-latency Flux turn-taking controls.

Design multi-step AI assistant conversations with workflow nodes, conditional routing, per-step model and voice overrides, and assistant routing on Telnyx infrastructure.

Soniox STT is now available on Telnyx for real-time transcription in voice AI workflows, with multilingual and streaming transcription support.

Rime Coda brings higher-quality multilingual text-to-speech to Telnyx, with expanded voice coverage for Hindi, Arabic, Portuguese, Spanish, and more.

GPT-5.4 is now generally available as a reasoning model for Telnyx Voice AI Assistants, adding OpenAI latest generation model to the on-network inference layer.

Speechmatics STT is now available in Mission Control, Voice API, and WebSocket transcription, with real-time interim results for live voice workflows.