# Gemma 4 31B IT

Gemma 4 31B IT is a model from Google with open weights, released on 31 Mar 2026. The context window is 262,144 tokens. Pricing is $0.20 per million input tokens and $0.40 per million output tokens.

- Developer: Google
- Id: google/gemma-4-31b-it
- Released: 2026-03-31T00:00:00.000Z
- Sighting: 2026-09-20T10:53:59.429Z
  - [evidence link](https://huggingface.co/google/gemma-4-31B-it)
- Status: Released
- Weights version: 2026-04-02
  - [evidence link](https://huggingface.co/api/models/google/gemma-4-31B-it/paths-info/842da3794eaa0b77d5f08bae87a17459d91ff475)
- Canonical: https://alexgetman.com/models/google/gemma-4-31b-it-380/

## Questions

### What is the context window of Gemma 4 31B IT?

The context window is 262,144 tokens.

### How much does Gemma 4 31B IT cost?

Pricing is $0.20 per million input tokens and $0.40 per million output tokens.

### Are the weights of Gemma 4 31B IT publicly available?

Yes. Google publishes the weights.

### When was Gemma 4 31B IT released?

On 31 Mar 2026.

## Evidence links

- [review](https://ai.google.dev/gemma/docs/releases)
- [hf-author-artifacts:google](https://huggingface.co/api/models/google/gemma-4-31B-it/paths-info/842da3794eaa0b77d5f08bae87a17459d91ff475)
- [huggingface-router](https://huggingface.co/google/gemma-4-31B-it)
- [review](https://huggingface.co/google/gemma-4-31b-it/resolve/main/config.json)
- [openrouter](https://openrouter.ai/google/gemma-4-31b-it)
- [openrouter](https://openrouter.ai/google/gemma-4-31b-it:free)

## Signals