# Gemma 4 31B

Gemma 4 31B is a model from Google with open weights, first recorded on 7 Oct 2026; its release date is not established. The context window is 262,144 tokens. The maximum output is 32,768 tokens.

- Developer: Google
- Id: google/gemma-4-31B
- Sighting: 2026-10-07T19:42:06.892Z
  - [evidence link](https://huggingface.co/google/gemma-4-31B)
- Status: Released
- Weights version: 2026-04-02
  - [evidence link](https://huggingface.co/api/models/google/gemma-4-31B/paths-info/5bbc2fb1c1b2c611d06e3d9f23c170ba21659d89)
- Canonical: https://alexgetman.com/models/google/gemma-4-31b/

## Questions

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

The context window is 262,144 tokens. The maximum output is 32,768 tokens.

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

Yes. Google publishes the weights.

### When was Gemma 4 31B released?

Its release date is not established. Signal Forge first recorded it on 7 Oct 2026.

## Evidence links

- [Arena · leaderboards](https://aistudio.google.com/app/prompts/new_chat?model=gemma-4-31b-it)
- [Artificial Analysis · benchmarks](https://artificialanalysis.ai/models)
- [hf-author-artifacts:google](https://huggingface.co/api/models/google/gemma-4-31B/paths-info/5bbc2fb1c1b2c611d06e3d9f23c170ba21659d89)
- [huggingface:google](https://huggingface.co/google/gemma-4-31B)
- [models.dev · catalogue](https://models.dev/#gemma-4-31b)
- [models.dev · catalogue](https://models.dev/#gemma4-31b)
- [models.dev · catalogue](https://models.dev/#gemma4:31b)

## Signals

- [Gemma 4 31B spotted on Arena](https://alexgetman.com/signals/2026/09/11/gemma-4-31b-reasoning/)