Release notes

We’ve expanded our STT capabilities to make the Telnyx Speech-to-Text API available as a standalone service. So you can Add accurate, real-time transcription in 100+ languages to any app.

Now share AI assistant demo links that show true end-user perceived latency per conversational turn, including client devices, network, and compute delays to inform tuning.

Telnyx lets you rewrite and improve AI assistant prompts directly inside the Mission Control Portal, reducing manual edits and standardizing assistant behavior.

Telnyx has launched a real-time Cost Estimator for Voice AI Agents, giving developers immediate per-minute cost visibility as they configure speech and model components in the Mission Control Portal.

Unlock updated intelligence and performance for real-time telephony with GPT-5.2 on Telnyx VoiceAI Assistants.

Configure a maximum duration for AI assistant participation in calls, controlling how long the assistant remains active and ensuring operational compliance.

Receive instant webhook notifications when a 10DLC campaign becomes dormant, so you can stay compliant and keep your messaging on track.

With the new send_message tool, Telnyx Voice AI Agents can send SMS directly from the same verified 10DLC or toll-free number, eliminating the need for external SMS logic for simpler workflows and improved reliability.

Telnyx introduces new Growth Plans, offering an 8% discount across Voice, Messaging, and Numbers. Designed for scaling teams that want predictable spend and built-in savings.

You can now create public demo links for any Telnyx AI assistant widget, making it easy to share prototypes with teammates or clients without needing Telnyx access.

AI Assistant now has a unified audio player that speeds up voice sampling and testing. Developers can preview, skip, switch voices, and update text without regenerating audio.

Our new Advanced Orders feature brings transparency, automation, and speed to the number request process, putting you in control from submission to fulfillment.