Mistral Medium 3.5

Mistral Medium 3.5

Mistral Medium 3.5 is Mistral’s first flagship merged model, designed to unify chat, reasoning, and coding in a single set of weights. It is a dense 128B model with a 256K context window, configurable reasoning effort per request, and a vision encoder trained from scratch for variable image sizes and aspect ratios. Mistral positions it for long-horizon tasks, reliable multi-tool calling, and structured outputs for downstream systems, and reports 77.6% on SWE-Bench Verified while saying it can self-host on as few as four GPUs.

Overview

Mistral Medium 3.5 is Mistral’s new flagship merged model for instruction following, reasoning, and coding. It is a dense 128B model with a 256K context window, built for long-horizon productivity and agentic work, with configurable reasoning effort and strong self-hosted efficiency.

💬Chatting 💻Coding 🤖Agents 🤔Logical reasoning 🔍Image interpretation

Pricing

Source

Compare Mistral Medium 3.5 with other models listed in the same vendor pricing tiers and context lengths.

Standard

Model	Input	Cached input	Output	Unit
Codestral 25.01 Mistral AI	$0.3	-	$0.9	per 1M tokens
Devstral 2 Mistral AI	$0.4	-	$2	per 1M tokens
Magistral Medium Mistral AI	$2	-	$5	per 1M tokens
Magistral Small Mistral AI	$0.5	-	$1.5	per 1M tokens
Ministral 3 14B Mistral AI	$0.2	-	$0.2	per 1M tokens
Ministral 3 3B Mistral AI	$0.1	-	$0.1	per 1M tokens
Ministral 3 8B Mistral AI	$0.15	-	$0.15	per 1M tokens
Mistral Large 3 Mistral AI	$0.5	-	$1.5	per 1M tokens
Mistral Medium 3.5 This model Mistral AI	$1.5	-	$7.5	per 1M tokens
Mistral NeMo Mistral AI	$0.15	-	$0.15	per 1M tokens
Mistral Small 4 Mistral AI	$0.1	-	$0.3	per 1M tokens
Mixtral 8x22B Mistral AI	$2	-	$6	per 1M tokens
Voxtral Small & Voxtral Mini Mistral AI	$0.1	-	$0.4	per 1M tokens

About Mistral AI

Mistral AI is a company that specializes in artificial intelligence and machine learning solutions.

Industry: Artificial Intelligence

Company Size: 316

Location: Paris, FR

Website: mistral.ai

View Company Profile

Benchmark scores

How Mistral Medium 3.5 ranks on tracked AI benchmarks. Click any benchmark to see its full leaderboard.

SWE-bench Verified

Coding

77.6%

Compare across all benchmarks →

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