Using Gemma 4 31B IT on OpenRouter

Implementation guide · Gemma 4 · Google DeepMind

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OpenRouter exposes Gemma 4 31B IT through model ID google/gemma-4-31b-it. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-06-15. Next refresh: weekly.

Quick Start

  1. 1
    Create an account at OpenRouter and generate an API key.
  2. 2
    Use the OpenRouter SDK or REST API to call google/gemma-4-31b-it — see the documentation for request format.
  3. 3
    You'll be billed $0.13/1M input, $0.38/1M output tokens. See full pricing.
API PortalDocumentationPricingModel Card

Code Examples

See OpenRouter documentation for integration details.

Pricing on OpenRouter

TypePrice (per 1M)
Input tokens$0.13
Output tokens$0.38

Capabilities

VisionMultimodalJSON / Tool useStructured Outputs

About Gemma 4 31B IT

Instruction-tuned variant of the 31B model with enhanced instruction-following. Maintains #3 Arena leaderboard performance with multimodal capabilities.

Full model details →

Model Specs

Released2026-03-31
Parameters31B
Context256k
Knowledge cutoff2025-01

More Models on OpenRouter

Gemma 4 26B A4B IT
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Also available on(5)

Open InferenceFree/1MNovita AI$0.14/1MGCP Vertex AI$0.15/1M
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Provider

OpenRouter

OpenRouter, Inc.

New York, NY, USA