Gemini 2.5 Flash Native Audio (Live, preview)
Speech and audio
gemini-2.5-flash-native-audio-preview-12-2025
$0.50 in, $2 out per 1M tokens
Gemini 2.5 Flash TTS / Pro TTS
Model idgemini-2.5-flash-preview-tts
Price$0.50 in, $10 out per 1M tokens
Checked29 September 2026
Where it stands
95newer speech and audio models since its release
- NVIDIA Nemotron 3.5 Transcribe (30B-A4B)28 Oct 2026
- Hy-SimulMT-30B-A3B22 Oct 2026
- Eleven Realtime v1 Max / Mini20 Oct 2026
- Voxtral Mini Transcribe 3 (+ Mini Transcribe Realtime 3)20 Oct 2026
- Voxtral Small Transcribe 320 Oct 2026
The 5 newest are listed. All speech and audio models
- Before it from Google
- Chirp 3 HD voices (Google Cloud Text-to-Speech)2 Apr 2025
- After it from Google
- Gemini 2.5 Flash Native Audio (Live, preview)23 Sep 2025
- Weights
- Closed weights; access is hosted only.
How to call it
5 ways to use Gemini 2.5 Flash TTS / Pro TTS, with the model id each provider expects.
| Provider | Model id | Endpoint | Docs |
|---|---|---|---|
| Gemini API | gemini-2.5-flash-preview-tts |
ai.google.dev | |
| Gemini API | gemini-2.5-pro-preview-tts |
ai.google.dev | |
| Google Cloud Text-to-Speech (Gemini-TTS, GA) | gemini-2.5-flash-tts |
docs.cloud.google.com | |
| 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 |
Pricing
| Input | $0.50 per 1M tokens |
|---|---|
| Output | $10 per 1M tokens |
As published: “per 1M tokens (USD) for Flash TTS; Pro TTS $1.00 in / $20.00 audio out (25 audio tokens per second)”.
Source: ai.google.dev, checked 29 September 2026.
Specs
- Input
- Text
- Output
- Audio
- Context window
- Not published
- Max output
- Not published
- Open weights
- No
- Licence
- Proprietary
- Released
- 20 May 2025
- Status
- Legacy
- Type
- Speech and audio
What stands out
What its maker marketed at launch, and what people found later, each with its source.
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).
Notes
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.
Sources: Gemini models, Gemini pricing, Cloud TTS release notes, Cloud TTS pricing.
Not yet checked against an official source: Released date = Google I/O 2025 preview (from memory, not re-verified today); Dec 10 2025 update improved expressivity and pacing.