Deepgram: Flux TTS

Flux TTS is a text-to-speech model from Deepgram. It is suited for natural, expressive English speech synthesis across Deepgram's Flux voice catalog.

Yes. The pricing shown on this page for Flux TTS is zero, so you are not charged for generated speech. Free endpoints are rate limited — see the rate limit docs.

Flux TTS ships 36 voices. Pass a voice ID in the voice field of a text-to-speech request; the IDs this endpoint accepts are listed with the model in the models API.

Flux TTS accepts text as input and returns generated speech audio.

Aura-2 is another speech model from Deepgram.

Flux TTS was released on August 12, 2026.