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- Gemini 3.1 Flash TTS PreviewGoogleRemove
| Attribute | Gemini 3.1 Flash TTS Previewgemini-3.1-flash-tts-preview |
|---|---|
| Pricing | |
| Input | $27.50 / 1M |
| Output | $0 / 1M |
| Cache Write (5m) | Not applicable |
| Cache Write (1h) | Not applicable |
| Cache Read | Not applicable |
| Web Search | $0 / 1M |
| Context | |
| Max context | 8.2K |
| Max output | N/A |
| Capabilities | |
| Vision | No |
| Function Calling | No |
| JSON Mode | Yes |
| Streaming | No |
| Catalogue | |
| Provider | |
| Category | voice |
| Charge type | Pay As You Go |
| Released | — |
| Description | |
| Summary | Gemini 3.1 Flash TTS Preview is Google's next-generation text-to-speech model, delivering a major upgrade over Gemini 2.5 Flash TTS. It converts text into natural audio across 70+ languages, with significantly expanded language coverage and improved quality. The model introduces 200+ inline audio control tags (e.g., [whispers], [laughs], [excited]) for fine-grained control over emotion, tone, and pacing, along with support for two speakers with independent voice and style settings. It outputs 24 kHz / 16-bit PCM audio, includes SynthID watermarking, and supports a 32K token context window. Designed for expressive and controllable voice generation, it is well suited for dialogue systems, storytelling, character-driven content, and advanced audio production workflows. |