Mistral: Mistral Medium 3.1

Mistral Medium 3.1 is an updated version of Mistral Medium 3, which is a high-performance enterprise-grade language model designed to deliver frontier-level capabilities at significantly reduced operational cost.

Context
131K
Max output
105K
Input price
$0.4/1M tokens
Output price
$2/1M tokens

Capabilities

Reasoning & Interaction
Tool Calling
Output Control
Structured Output
JSON Mode

Details

Model IDmistralai/mistral-medium-3.1
Provider OpenRouter
Creator Mistral AI
Familymistral-medium
License—
Status—
Typechat
Input modalitiestext, image
Output modalitiestext
Open weight—
Parameters—
Architecture—
Context window131K tokens
Max input—
Max output105K tokens
Reasoning tokens—
Knowledge cutoff—
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Input
$0.4
Output
$2
Cache write
—
Cache read
$0.04
Batch in
—
Batch out
—

Family Comparison: mistral-medium

ModelContextMax outPricing
Mistral: Mistral Medium 3.1 (batch)131K105K$0.2$1
Mistral: Mistral Medium 3.1131K105K$0.4$2
Mistral: Mistral Medium 3131K105K$0.4$2
Mistral: Mistral Medium 3.5 (batch)262K210K$0.75$3.75
Mistral: Mistral Medium 3.5262K210K$1.5$7.5

API

GET/v1/models/openrouter/mistralai/mistral-medium-3.1

Mistral: Mistral Medium 3.1

mistralai/mistral-medium-3.1

Mistral Medium 3.1 is an updated version of Mistral Medium 3, which is a high-performance enterprise-grade language model designed to deliver frontier-level capabilities at significantly reduced operational cost.

Changes · 5 entries
mistralai/mistral-medium-3.1updateca7a400Nov 2, 2026, 03:02 AM
max_output_tokens104857
mistralai/mistral-medium-3.1updatee3d7dedAug 31, 2026, 04:13 AM
max_output_tokens104857
mistralai/mistral-medium-3.1update1cd659eMar 24, 2026, 04:19 AM
capabilitiesjson modeyes
mistralai/mistral-medium-3.1update2b100acMar 23, 2026, 05:30 AM
model_typechat
release_date2025-08-13
taglineMistral Medium 3.1 is an updated version of Mistral Mediu...
tools["function_calling"]
mistralai/mistral-medium-3.1create7f5c66fMar 21, 2026, 05:16 AM