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
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
Get the weekly diff
The weekly diff: one email a week with new agent tools, notable updates and grade changes, plus security alerts for tools you follow. Double opt-in, one-click unsubscribe.
About
Use cases: model-inference
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
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
More from Google
- 0.950score
Gemini CLI Companion
Google
Enable Gemini CLI with direct access to your IDE workspace.
PluginAFreshness: A★ 107.7KVS Code +3 - 0.799score
Genkit
Google
Open-source Firebase framework for AI features and agent workflows in JavaScript, Go, Python and Dart, with model plugins.
HarnessAFreshness: A★ 6.5K↓ 95.8K/wk - 0.791score
ADK for Go
Google
Code-first Go toolkit for building agents with a tool ecosystem, composable multi-agent systems and Cloud Run deployment.
HarnessAFreshness: A★ 8.9K - 0.777score
ADK for TypeScript
Google
TypeScript toolkit for agents with Zod-typed tools, graph and multi-agent workflows, and Node.js or browser runtimes.
HarnessAFreshness: A★ 1.4K↓ 143.5K/wk - 0.734score
Google Agent Development Kit (ADK)
Google
Open-source toolkit for building, evaluating and deploying agents in Python, TypeScript, Go, Java and Kotlin, tuned for Gemini but model-agnostic.
HarnessAFreshness: A★ 22K↓ 2.4M/wk - 0.729score
Gemini CLI
Google
Open-source terminal agent that queries and edits codebases and automates tasks with Gemini models
AgentAFreshness: A★ 107.7K↓ 231.3K/wk
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)