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Mistral Medium 3.5

Frontier-class multimodal model optimized for agentic and coding use cases.

Mistral AImistral-medium-3-52026-04-28Report incorrect data

Specs

Context
262.1K
Max output
—
Input price
$1.5/ 1M tokens
Output price
$7.5/ 1M tokens
Released
2026-04-28

Context

Context window
262.1K
Max input
—
Max output
—

Pricing · USD / 1M tokens

Input
$1.5
Output
$7.5
Cache read
$0.15
Cache write
—

Modalities

Input
TextImage
Output
Text

API

API types
chatbatch

Reasoning

Reasoning
Yes
Levels
nonehigh

Info

Status
Active
Released
2026-04-28
Knowledge cutoff
—

Features

Confirmed
toolsstructured_outputcachingbatch
Source · official docsVerified 2026-10-11

How to call

1 provider

mistralmodel = mistral-medium-3-5reasoning = reasoning_effort

chat
POSThttps://api.mistral.ai/v1/chat/completions
batch
POSThttps://api.mistral.ai/v1/batch

JSON

Standard format
mistral-medium-3-5.json
{
  "id": "mistral-medium-3-5",
  "object": "model",
  "created": 1777334400,
  "owned_by": "mistral",
  "name": "Mistral Medium 3.5",
  "api": {
    "types": [
      "chat",
      "batch"
    ]
  },
  "limits": {
    "context": 262144,
    "input": null,
    "output": null
  },
  "modalities": {
    "input": [
      "text",
      "image"
    ],
    "output": [
      "text"
    ]
  },
  "reasoning": {
    "supported": true,
    "efforts": [
      "none",
      "high"
    ]
  },
  "pricing": {
    "currency": "USD",
    "unit": "1M_tokens",
    "input": 1.5,
    "output": 7.5,
    "cache_read": 0.15,
    "cache_write": null
  },
  "features": [
    "tools",
    "structured_output",
    "caching",
    "batch"
  ],
  "info": {
    "status": "active",
    "release_date": "2026-04-28",
    "knowledge_cutoff": null,
    "description": "Frontier-class multimodal model optimized for agentic and coding use cases.",
    "docs": "https://docs.mistral.ai/models/mistral-medium-3-5-26-04",
    "verified_at": "2026-10-11"
  }
}

Official sources

5