Gemini 2.5 Flash TTS / Pro TTS
Gemini API ids are 'Limited Access' preview with no shutdown date (migrate to gemini-3.8-flash-tts / -lite-tts). In Cloud TTS, gemini-2.5-flash-tts and gemini-2.5-pro-tts went GA 2025-09-30; streaming added 2025-11-07. Released date = Google I/O 2025 preview (from memory, not re-verified today); Dec 10 2025 update improved expressivity and pacing.
- Input
- text
- Output
- audio
- License
- proprietary
- Pricing
- input: $0.5 · output: $10 (per 1M tokens (USD) for Flash TTS; Pro TTS $1.00 in / $20.00 audio out (25 audio tokens per second)) source
- Verified
- 2026-09-29
How to call it
| Provider | Model id | Endpoint / URL | Docs |
|---|---|---|---|
| Gemini API | gemini-2.5-flash-preview-tts | — | docs |
| Gemini API | gemini-2.5-pro-preview-tts | — | docs |
| Google Cloud Text-to-Speech (Gemini-TTS, GA) | gemini-2.5-flash-tts | — | docs |
| Google Cloud Text-to-Speech (Gemini-TTS, GA) | gemini-2.5-pro-tts | — | — |
| Google Cloud Text-to-Speech (preview) | gemini-2.5-flash-lite-preview-tts | — | — |
Notable capabilities (1)
- Prompt-controlled multi-speaker TTS: Natural-language control of style, accent, pace and emotion; single and multi-speaker synthesis; 30 speakers in 80+ locales (Cloud GA). source
Other Google DeepMind models
Gemini 3.8 Flash TTS · Gemini 3.8 Live · Gemini 3.8 Flash · Gemini 3.5 Transcribe (and Transcribe Live) · Lyria 3.5 · Gemini 3.5 Flash-Lite · Nano Banana 2 Lite (Gemini 3.1 Flash-Lite Image) · Gemini Omni Flash (Omni 1.1 Flash) · Gemini Embedding 2 · Gemma 4 · Nano Banana 2 (Gemini 3.1 Flash Image) · Nano Banana Pro (Gemini 3 Pro Image) · Gemini Robotics 2 · Gemini Robotics ER 2 · Gemini Robotics On-Device 2 · Gemini 3.5 Live Translate · Gemini 3.1 Pro · Veo 3.1 · Genie 3 · Lyria RealTime · Gemini 3.7 Flash · Gemini 3.6 Flash · Gemini 3.5 Flash · Gemini 3.1 Flash TTS (preview) · Gemini 3.1 Flash Live (preview) · Lyria 3 (Clip / Pro) · Lyria 2 · Gemini 2.5 Flash Native Audio (Live, preview) · Gemini 2.5 Flash-Lite · Gemini 2.5 Flash · Gemini 2.5 Pro · Gemini 3.1 Flash-Lite · Nano Banana (Gemini 2.5 Flash Image) · Gemini Robotics-ER 1.5 / 1.6 · Imagen 4