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Inworld Realtime TTS 2 is now available through Telnyx APIs and Voice AI Assistants, giving developers access to expressive voices built for realtime conversation across managed agents and custom voice pipelines.
Unlike traditional TTS built for narration, Realtime TTS 2 is designed for live interaction. It can account for conversational context, take voice direction in plain English, and hold one voice identity across over 100 languages.
For API synthesis, use Inworld voices in Telnyx TTS requests with the Inworld.<Model>.<VoiceId>
format. For example, developers can use Inworld voices through WebSocket streaming or REST when building custom voice stacks, media experiences, IVRs, or agent infrastructure outside the managed assistant flow.
For managed voice agents, select Inworld as the Text-to-Speech provider inside your Telnyx Voice AI Assistant and configure the voice for your assistant flow. Via the API:
Inworld.<Model>.<VoiceId>
format.Via Voice AI Assistants:
Learn more in the Telnyx Inworld TTS documentation or the Telnyx TTS API documentation.