Mistral: Mistral Medium 3.5

Mistral: Mistral Medium 3.5

mistralai · Released Apr 30, 2026 Professional New
Intelligence #58 / 544
71.2 Our Score
Speed #43 / 252
174.3 tokens / sec
Input #447 / 544
$1.50 per 1M tokens
Output #457 / 544
$7.50 per 1M tokens
Context #89 / 544
262,144 tokens

Analysis Summary

Mistral: Mistral Medium 3.5 sits in the Professional tier on our leaderboard, ranked #58 of 544 published models on overall intelligence. At $1.50 input and $7.50 output per 1M tokens, it is among the most expensive on the market. It offers a generous context window for extended reasoning and code review and supports tool use, function calling, and vision.

Editorial notes

Mistral Medium 3.5 delivers strong agentic performance, vision support, tool use, and function calling at a competitive price point, with a 262K context window and solid instruction-following scores.

Assessed May 5, 2026

Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?

Performance Profile

Intelligence6.5Technical7.1Value7Content7.2
Intelligence 6.5/10
Technical 7.1/10
Content 7.2/10
Value 7/10

Mistral Medium 3.5 is a dense 128B instruction-following model from Mistral AI. It supports text and image inputs with text output, and is designed for agentic workflows, coding, and complex..

Capabilities

Tool Use Function Calling Vision

Performance Indices

Source: Artificial Analysis

39.2 Intelligence Index
35.4 Coding Index
63.8 Agentic Index

This model was released recently. Independent benchmark evaluations are typically completed within days of release — these figures are preliminary and are likely to be updated as testing is finalised.

Benchmark Scores

Intelligence

GPQA Diamond 74.8% Graduate-level scientific reasoning
HLE 12.8% Humanity's Last Exam
SciCode 39.6% Scientific computing

Technical

TerminalBench Hard 33.3% Agentic terminal tasks
τ²-Bench 94.2% Conversational agent benchmark

Content

IFBench 68.8% Instruction following
LCR 61% Long-context reasoning

Benchmark data from Artificial Analysis and Hugging Face

How does Mistral: Mistral Medium 3.5 stack up?

Compare side-by-side with other professional models.

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Model Information

OpenRouter ID mistralai/mistral-medium-3-5
Providermistralai
Model FamilyMistral
Release Date April 30, 2026
Context Length262,144 tokens
Status Active

Pricing

Token Type Cost per 1M tokens Cost per 1K tokens
Input $1.50 $0.001500
Output $7.50 $0.007500

Live Performance

Live endpoint metrics — refreshed every 30 minutes.

100%
Avg Uptime
3,191ms
Best Latency (TTFT)
22 tok/s
Best Throughput
1/1
Active Endpoints
Available via: Mistral

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