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OpenRouter

Mistral Medium 3.1 API

OpenRouter
About

Integrate multimodal vision capabilities using Mistral Medium 3.1, designed to process both text and images seamlessly. This model delivers cost-effective pricing at $0.40/1M input and $2.00/1M output tokens, native tool calling support. Access Mistral Medium 3.1 via the OpenRouter API with up to 262K output tokens.

Capabilities

Input Modalities

textimage

Output Modalities

text
Reasoning
No
Structured Output
Yes
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
262K

Tokens

Input Limit
262K

Tokens

Max Output
262K

Tokens

Pricing

Standard (per 1M tokens)

Input
$0.40
Output
$2.00
Frequently Asked Questions

Mistral Medium 3.1 by OpenRouter costs $0.40 per 1M input tokens and $2.00 per 1M output tokens.

Model Details
ID
mistralai/mistral-medium-3.1
Provider
OpenRouter
Family
mistral-medium
Release Date
Aug 12, 2025
Knowledge Cutoff
May 1, 2025
API Integration
NPM Package
@openrouter/ai-sdk-provider
Environment Variables
OPENROUTER_API_KEY
API Base URL
https://openrouter.ai/api/v1
Documentation