Gemma 4 31B
Gemma 4 31B Instruct is Google DeepMind's 30.7B dense multimodal model supporting text and image input with text output.
Model by Google
Chalk Labs
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Install
Pick your client. Read the repository before you give any tool access to your data.
{
"model": "google/gemma-4-31b-it",
"baseURL": "https://openrouter.ai/api/v1"
}OpenAI-compatible API: point any OpenAI SDK at the base URL and use this model id.
Settings it needs
OPENROUTER_API_KEYrequiredsecret
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About
Use cases: model-inference
Reviews
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Price and limits
| Variant | Input $/M tokens | Output $/M tokens | Cached input $/M |
|---|---|---|---|
| Standard | $0.1 | $0.34 | $0.1 |
Free (rate-limited) google/gemma-4-31b-it:free | Free | Free | — |
Price as of Oct 26, 2026 from OpenRouter · provider's own prices: ai.google.dev. Prices change often; check before you rely on one.
- Provider
- Model id
google/gemma-4-31b-it- Context window
- 262,144 tokens (262K)
- Max output
- 235,929 tokens
- Input
- image, text, video
- Output
- text
- Tool calling
- Yes
- Structured outputs
- Yes
- Reasoning
- Yes
- Weights
- Open: google/gemma-4-31B-it
- Released
- Apr 2, 2026
Price changes
- Oct 26, 2026: $0.1 in / $0.34 out
- Oct 24, 2026: $0.2 in / $0.4 out
Details
- Auth
- API key
- License
- License unknown
- Website
- ai.google.dev
- First seen
- Oct 24, 2026
- Last checked
- Oct 26, 2026
- Source
- OpenRouter
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Rahil Jain, Co-founder, Chalk Labs. Ex-Goldman Sachs engineer. You talk to the person who builds it.
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Cite this page
Gemma 4 31B: price, context window, tool use. Agent Mart. https://agentmart.dev/models/google-gemma-4-31b-it (last updated 2026-10-26)