Mistral: Mistral Medium 3.1

Mistral: Mistral Medium 3.1

mistralai · Released Aug 13, 2025 Specialist
Intelligence #139 / 556
50.7 Our Score
Speed #178 / 257
63.7 tokens / sec
Input #346 / 557
$0.400 per 1M tokens
Output #373 / 557
$2.00 per 1M tokens
Context #220 / 557
131,072 tokens

Analysis Summary

Mistral: Mistral Medium 3.1 sits in the Specialist tier on our leaderboard, ranked #139 of 556 published models on overall intelligence. At $0.400 input and $2.00 output per 1M tokens, it is among the most expensive on the market. It offers a standard large context window and supports tool use, function calling, and vision.

Editorial notes

Mistral Medium 3.1 adds vision and multimodal input to a mid-tier reasoning base, with tool use and function calling, but benchmark scores across intelligence and coding are modest for its $0.40/1M input price point.

Assessed May 14, 2026

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

Performance Profile

Intelligence4.1Technical3.5Value7.3Content5
Intelligence 4.1/10
Technical 3.5/10
Content 5/10
Value 7.3/10

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. It balances..

Capabilities

Tool Use Function Calling Vision

Performance Indices

Source: Artificial Analysis

21.3 Intelligence Index
18.3 Coding Index
25.6 Agentic Index
38.3 Math Index

Benchmark Scores

Intelligence

GPQA Diamond 58.8% Graduate-level scientific reasoning
HLE 4.4% Humanity's Last Exam
MMLU Pro 68.3% Multi-task language understanding
AIME 2025 38.3% Competition mathematics (2025)
SciCode 33.8% Scientific computing

Technical

LiveCodeBench 40.6% Live coding evaluation
TerminalBench Hard 10.6% Agentic terminal tasks
τ²-Bench 40.6% Conversational agent benchmark

Content

IFBench 39.8% Instruction following
LCR 19.7% Long-context reasoning

Benchmark data from Artificial Analysis and Hugging Face

How does Mistral: Mistral Medium 3.1 stack up?

Compare side-by-side with other specialist models.

Compare Models

Model Information

OpenRouter ID mistralai/mistral-medium-3.1
Providermistralai
Model FamilyMistral
Release Date August 13, 2025
Context Length131,072 tokens
Status Active

Pricing

Token Type Cost per 1M tokens Cost per 1K tokens
Input $0.40 $0.000400
Output $2.00 $0.002000

Live Performance

Live endpoint metrics — refreshed every 30 minutes.

100%
Avg Uptime
888ms
Best Latency (TTFT)
46 tok/s
Best Throughput
1/1
Active Endpoints
Available via: Mistral

Leaderboard Categories