# August 31, 2026

## Wider `speed` range for Flux TTS

Flux TTS `speed` now runs from `0.5` to `1.5` in `0.05` increments, up from `0.85`–`1.15`. The default stays `1.0`, and every previously accepted value still works.

The wider range applies everywhere `speed` is accepted on Flux TTS: the `/v2/speak` streaming WebSocket (at connection and mid-session with `Configure`), the `/v2/speak` batch REST endpoint, and `agent.speak.provider.speed` in Voice Agent sessions running `provider.version` `v2`. A value outside the range is still rejected with `SPEED_OUT_OF_RANGE`, and one off the `0.05` increment with `SPEED_INCREMENT_INVALID`.

Aura `speed` is unchanged at `0.7`–`1.5`.

For details, see [Getting Started with Flux TTS](/guides/flux-tts-quickstart), [Client Messages](/guides/flux-tts-client-messages#configure), and [TTS Models](/guides/self-hosted-deployments-3-voice-agent-tts-models#deepgram-tts-models).

## Related pages

- [Amazon SageMaker](./amazon-sagemaker-index.md)
- [Aura](./aura-index.md)
- [Changelog](../changelog.md)
- [Custom Vocabulary](./custom-vocabulary-index.md)
- [Deepgram's Docs](../index.md)
- [Deployment](./deployment-index.md)
- [Docker/Podman](./docker-podman-index.md)
- [Features](./features-index.md)
- [Flux TTS](./flux-tts-index.md)
- [Formatting](./formatting-index.md)

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