Gemini 3.1 Flash TTS Preview
Gemini 3.1 Flash TTS Preview is Google's text to speech model with a 8K context window and up to 16K output tokens, starting at $1.00 / 1M input and $20.00 / 1M output. A preview text-to-speech variant of Gemini 3.1 Flash for early access to fast voice synthesis capabilities.
| Specifications | |
|---|---|
google-gemini-3-1-flash-tts-preview | |
| Text to Speech | |
| Active | |
| Google | |
| 8K tokens | |
| 16K tokens | |
| Text | |
| Audio | |
| default | |
| · 2 years ago | |
Capabilities
Input1/5
Text✓
Image·
Audio·
Video·
PDF·
Output1/5
Text·
Image·
Audio✓
Video·
Embedding·
Capabilities1/13
Reasoning✓
Adaptive Reasoning·
Function Calling·
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·
Pricing by Provider
US Dollar ($)
Per 1M tokens
| Provider | Standard | |
|---|---|---|
| Input $ / 1M | Output $ / 1M | |
| $1.00 | $20.00 | |
Cost Calculator
US Dollar ($)
Preset:
Versions
| Version | Released | Context | Input / 1M | Output / 1M | Status |
|---|---|---|---|---|---|
| Gemini 3.7 Flash | 1.0M | $0.375 | $1.88 | Available | |
| Gemini 3.6 Flash | 1.0M | $0.750 | $3.75 | Available | |
| Gemini 3.1 Flash Image | 131K | $0.500 | $3.00 | Available | |
| Gemini 3.5 Flash | 1.0M | $0.750 | $4.50 | Available | |
| Gemini 3 Flash | 1.0M | $0.500 | $3.00 | Available | |
| Gemini 3 Flash Preview | 1.0M | $0.500 | $3.00 | Available | |
| Gemini 3.1 Flash TTS Preview | — | 8K | $1.00 | $20.00 | Current |
| Gemini 3 Flash Reasoning | — | — | — | — | Available |
| Gemini 3 Flash Live | — | — | $0.500 | $3.00 | Available |
| Gemini 3 Flash Live Live | — | — | $0.750 | $4.50 | Available |
| Gemini 3.1 Flash Live | — | — | $0.750 | $4.50 | Available |
Other Models
| Model | Tier | Released | Context | Input / 1M | Output / 1M |
|---|---|---|---|---|---|
| Gemini 3.5 Flash Lite | Flash-lite | 1.0M | $0.150 | $1.25 | |
| Gemini 3.1 Flash Lite Image | Flash-lite | 66K | $0.250 | $1.50 | |
| Gemini 3 Pro Image | Pro | 131K | $2.00 | $12.00 | |
| Gemini 3.1 Flash Lite | Flash-lite | 1.0M | $0.250 | $1.50 | |
| Gemini 3.1 Flash Lite Preview | Flash-lite | 1.0M | $0.250 | $1.50 | |
| Gemini 3.1 Pro Preview | Pro | 1.0M | $2.00 | $12.00 | |
| Gemini 3 Pro Preview | Pro | 1.0M | $2.00 | $12.00 | |
| Gemini 3 Deep Think | — | — | — | — | — |
| Gemini 3 Pro | Pro | — | 1.0M | $2.00 | $12.00 |
| Gemini 3 Pro Preview Low | Pro | — | — | — | — |