Google: Gemini 3.1 Flash Live Preview
Gemini 3.1 Flash Live Preview is a reasoning model from Google released on Mar 26, 2026. It reads text, images, audio and video and writes text and audio, with a 131K token context window and up to 66K tokens per reply.
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It costs $0.75 per million input tokens and $4.50 per million output tokens.
It supports tool calling.
- Modalities
- In / out price
- $0.75 / $4.50 per 1M
- Context
- 131K
- Max output
- 66K
- Released
- Mar 26, 2026
- Knowledge cutoff
- Jan 2025
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
Gemini 3.1 Flash Live 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 | $0.75 / 1M tokens | |
|---|---|---|
| Output | $4.50 / 1M tokens | |
| Audio input | $3 / 1M tokens |
What Gemini 3.1 Flash Live 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 Live Preview through an OpenAI compatible API.
- Tools
tools - Reasoning
reasoning - Temperature
temperature
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Gemini 3.1 Flash Live Preview questions
How much does the Gemini 3.1 Flash Live Preview API cost?
$0.75 per million input tokens and $4.50 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 Live Preview?
131,072 tokens of input, and it can write up to 65,536 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Does Gemini 3.1 Flash Live Preview support tool calling?
Yes. It accepts tool definitions, which is what an agent needs to call your APIs.
Is Gemini 3.1 Flash Live 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 Live Preview released?
Mar 26, 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 Live 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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