Using Mistral Small 3.1 24B Instruct on OpenRouter

Implementation guide · Mistral Small · MistralAI

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OpenRouter exposes Mistral Small 3.1 24B Instruct through model ID mistralai/mistral-small-3.1-24b-instruct. 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 mistralai/mistral-small-3.1-24b-instruct — see the documentation for request format.
  3. 3
    You'll be billed $0.35/1M input, $0.56/1M output tokens. See full pricing.
API PortalDocumentationPricingModel Card

Code Examples

See OpenRouter documentation for integration details.

Pricing on OpenRouter

TypePrice (per 1M)
Input tokens$0.35
Output tokens$0.56

Capabilities

VisionMultimodalStructured Outputs

About Mistral Small 3.1 24B Instruct

Mistral's Small 3.1 24B model with multimodal vision understanding capabilities. Optimized for cost-efficient deployment with 128K token context window. Available on Cloudflare Workers AI.

Full model details →

Model Specs

Released2025-12-15
Parameters24B
Context128k
ArchitectureDecoder Only
Knowledge cutoff2023-10

More Models on OpenRouter

Mistral Small 4Mistral Small 3.2 24B
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Also available on(6)

Together AI$0.10/1MFeatherless$0.22/1MCloudflare Workers AI$0.35/1M
Compare all providers →

Provider

OpenRouter

OpenRouter, Inc.

New York, NY, USA