
Gemini 2.5 Pro TTS API by Google
Gemini text-to-speech (Pro): studio-quality, expressive speech from text with 30 prebuilt voices and natural-language style control. Powered by gemini-2.5-pro-preview-tts.
Gemini 2.5 Pro TTS is developed by Google. Atlas Cloud (operated by Atlas Cloud AI LLC) provides access to it and does not own it. All trademarks belong to their respective owners.
Gemini 2.5 Pro TTS
Studio-quality, expressive text-to-speech powered by Google's gemini-2.5-pro-preview-tts.
Highlights
- 30 prebuilt voices — Kore, Puck, Charon, Aoede, Fenrir, Leda, Orus, Zephyr, and more.
- Style prompting — steer tone, pace and emotion in natural language inside
text, e.g. "Say cheerfully: ..." or "Read slowly and calmly: ...". - Output is a WAV file (24 kHz PCM); billed per 1k characters.
Parameters
| field | required | notes |
|---|---|---|
text | yes | text to synthesize (may embed a style instruction), ≤10000 chars |
voice_name | no | prebuilt voice, default Kore |
Powered by Google Gemini via Atlas Cloud.













