Release notes

Inbound Call Screening is now free for all Telnyx phone numbers, with expanded reputation coverage from CallerAPI, Nomorobo, and YouMail.

Telnyx Ultra is a premium voice model, built for fast voice AI. Generate expressive speech with sub-100ms time to first byte across 42 languages, with SSML emotion control for AI assistants and...

Create custom TTS voices using prompts or audio cloning. Use them across Telnyx AI Assistants, Call Control, and the TTS API.

Inworld's TTS is now available on Telnyx, delivering professional voice actor quality at up to 90% cost savings.

Montreal is now available as the 9th anchorsite location, joining 8 existing sites across North America, Europe, Asia, and Australia. This addition provides lower latency for voice traffic in Eastern...

We now support state-of-the-art open source LLMs over our Chat Completions endpoint. All models were released in 2026 and are on the efficient frontier of cost per intelligence. Currently available...

Arcana V3 is here: the fastest, most natural multilingual TTS on the market, now live across Voice API, AI Agents, and Standalone TTS.

Telnyx Edge Compute lets developers run serverless functions directly on Telnyx's global edge infrastructure for low-latency communications and AI workloads.

Testing AI assistants before deployment is critical but often tedious. The Telnyx Coval integration brings automated testing and QA directly into your AI assistant workflow, with one-click setup and...

The new Telnyx LiveKit Plugin lets developers access multiple speech providers and carrier-grade infrastructure with a few lines of code.

Voice AI Assistants can now detect when a transferred call reaches voicemail and respond automatically. Configure your assistant to either stop the transfer and return to the caller, or leave a...

Configure adaptive jitter buffer settings on Credential, FQDN, and IP connections to reduce audio artifacts caused by network jitter — ideal for contact centers and VoIP deployments over variable...