Gemma 4 31B (free)

Name: Gemma 4 31B (free)
Brand: google
SKU: google/gemma-4-31b-it-free

google·google/gemma-4-31b-it-free·GA·Open weights·gemma series

Largest Gemma 4 instruction model for open, self-hosted chat and reasoning

Specs & pricing

Input / output per 1M tokens

Reference priceOpenRouter

$0 / $0

Blended $0 · Cache read —

Lowest paid

No paid channels

2 more $0 channels

Context

262,144

Output limit

32,768

Knowledge cutoff

—

Released / updated

2026-04-02 / 2026-04-02

Capabilities

✓ Reasoning✓ Tool useStructured output✓ Temperature✓ Attachments

Modalities

ImageTextVideo

Available at 2 providers0 with public prices · 2 free

Priced only

Provider	Tier	Input	Output	Cache read	Cache write	Context	Output limit	Status
OpenRouter google/gemma-4-31b-it:free	Gateway	Free		—	—	262,144	32,768
Bothub gemma-4-31b-it:free	Gateway	Free		—	—	262,144	32,768

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Reasoning control

Toggle (on / off)

Interleaved thinking (reasoning between tool calls) is declared by 1 of 2 providers.

Your usage cost

Input tokens / month

Output tokens / month

Cache hit rate

Common scenarios

This model is $0 across all listed channels (OpenRouter, Bothub).

Price historyone sample accumulated per data sync

Input listOutput listMin blended

Gemma 4 31B (free)

Specs & pricing

Available at 2 providers0 with public prices · 2 free

Reasoning control

Your usage cost

Price historyone sample accumulated per data sync

Related models

Gemma 4 31B (free)

Specs & pricing

Available at 2 providers0 with public prices · 2 free

Reasoning control

Your usage cost

Price historyone sample accumulated per data sync

Related models