Mistral: Mistral Medium 3.5

proprietary

Mistral Medium 3.5 is a dense 128B instruction-following model from Mistral AI.

Context
262K
Max output
210K
Input price
$1.5/1M tokens
Output price
$7.5/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming

Details

Model IDmistralai/mistral-medium-3-5
Provider OpenRouter
Creator Mistral AI
Familymistral-medium
Licenseproprietary
Status—
Typechat
Input modalitiestext, image
Output modalitiestext
Open weightNo
Parameters—
Architecture—
Context window262K tokens
Max input—
Max output210K tokens
Reasoning tokens—
Knowledge cutoff—
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Input
$1.5
Output
$7.5
Cache write
—
Cache read
—
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-3-5

Mistral: Mistral Medium 3.5

mistralai/mistral-medium-3-5

Mistral Medium 3.5 is a dense 128B instruction-following model from Mistral AI.

Changes · 3 entries
mistralai/mistral-medium-3-5updateca7a400Nov 2, 2026, 03:02 AM
max_output_tokens209715
mistralai/mistral-medium-3-5updatee3d7dedAug 31, 2026, 04:13 AM
max_output_tokens209715
mistralai/mistral-medium-3-5create241c61aMay 7, 2026, 04:28 AM