For AI agents: a documentation index is available at the root level at /llms.txt and /llms-full.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
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Changelog

June 16, 2025
June 16, 2025

WebSocket Streaming for TTS API

We are excited to launch WebSocket streaming for our Text-to-Speech API. This feature enables developers to build real-time, low-latency voice experiences by streaming text and receiving synthesized audio over a persistent, bidirectional connection. It is ideal for applications like conversational AI, live chat support, and dynamic content narration where immediate audio feedback is crucial.

Key features include:

  • Low-Latency Communication: Stream text and receive audio with minimal delay.
  • Bidirectional Streaming: Send text and receive audio on the same connection.
  • Efficient: Avoids the overhead of repeated HTTP requests for continuous audio synthesis.
  • Real-Time Control: Adjust voice style, speed, and pitch during the session.

Learn more in our WebSocket Streaming documentation.

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