Google: Gemini 3.1 Flash TTS Preview
Gemini 3.1 Flash TTS Preview is a text to speech model from Google released on Apr 15, 2026. It reads text and writes audio, with a 8K token context window.
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It costs $1 per million input tokens and $20 per million output tokens.
2 providers serve it, including Kenari.
- Modalities
- In / out price
- $1 / $20 per 1M
- Context
- 8K
- Max output
- 16K
- Released
- Apr 15, 2026
- Knowledge cutoff
- Jan 2025
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
Gemini 3.1 Flash TTS Preview pricing
USD, as listed on Oct 15, 2026. Most bills are input heavy, so the cached input rate matters as much as the headline price.
| Input | $1 / 1M tokens | |
|---|---|---|
| Output | $20 / 1M tokens |
Gemini 3.1 Flash TTS Preview providers
2 providers serve it, including Kenari. Each host sets its own price and limits, so the cheapest one is not always the one with the longest context.
| Provider | Input /M | Output /M | Cache read /M | Context | Max output |
|---|---|---|---|---|---|
| Google First party | $1 | $20 | – | 8K | 16K |
| Kenari | n/a | n/a | – | 8K | 16K |
What Gemini 3.1 Flash TTS Preview costs per month
Pick a workload close to yours or type your own volumes.
Supported request parameters
What you can set when you call Gemini 3.1 Flash TTS Preview through an OpenAI compatible API.
- Reasoning
reasoning - Temperature
temperature
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Gemini 3.1 Flash TTS Preview questions
How much does the Gemini 3.1 Flash TTS Preview API cost?
$1 per million input tokens and $20 per million output tokens. The estimator on this page turns that into a monthly bill for your own workload.
What is the context window of Gemini 3.1 Flash TTS Preview?
8,192 tokens of input, and it can write up to 16,384 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Which providers serve Gemini 3.1 Flash TTS Preview?
2 providers serve it, including Kenari. Prices differ by host, so the Providers table on this page lists each one with its input and output price.
Is Gemini 3.1 Flash TTS Preview open source?
No. Google serves it through an API only, so you cannot download the weights or host it yourself.
When was Gemini 3.1 Flash TTS Preview released?
Apr 15, 2026, with training data up to Jan 2025.
Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 15, 2026. The summary is written from these facts.
Building on Gemini 3.1 Flash TTS Preview?
I test your real tasks on it and the two closest alternatives, then ship the agent on whichever wins on cost and accuracy.
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