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Gemma 4 31B (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
At a glance
Reference price$0 / $0 per 1M
Cache read — · OpenRouter
Lowest paidNo paid channels
1 more $0 channels
Context262,144
Output limit32,768
Capabilities
✓ Reasoning✓ Tool useStructured output✓ Temperature✓ Attachments
Modalities
ImageTextVideo
Knowledge cutoff—
Released / updated2026-04-02 / 2026-04-02
Quality & performance
Artificial Analysis doesn't cover this model (267 of 2059 have data). Quality data comes from independent evals covering widely used models.
Available at 1 providers0 with public prices · 1 free
| 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 |
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.
Your usage cost
This model is $0 across all listed channels (OpenRouter).
Benchmark
No upstream benchmark data for this model. For quality, see the Artificial Analysis intelligence score above.
Reasoning control
Toggle (on / off)
Related models
Gemma 4 12B Instructsame series$0.06 / $0.30Gemma 4 26B A4Bsame series$0.13 / $0.40Google Gemma 3 27B Instructsame series$0.12 / $0.20
Price historyone sample accumulated per data sync
Input listOutput listMin blended