Mistral: Mistral Medium 3.1

Mistral: Mistral Medium 3.1

mistralai · Released Aug 13, 2025 Professional
Intelligence #10 / 576
82.0 Our Score
Speed #141 / 271
90.8 tokens / sec
Input #356 / 577
$0.400 per 1M tokens
Output #387 / 577
$2.00 per 1M tokens
Context #233 / 577
131,072 tokens

Analysis Summary

Mistral Medium 3.1 is Mistral's latest mid-tier model with vision, file, and text input support, tool use, and function calling across a 131K context window. With an intelligence index of 21.3 and a coding index of 18.3, it sits in the mid-range of benchmarked models, offering reasonable general reasoning and adequate coding capability for lighter tasks. The math index of 38.3 and agentic index of 25.6 suggest it can handle structured analytical work but is not suited for complex autonomous pipelines.

For businesses, the multimodal input support combined with competitive pricing at $0.40/1M input makes it a practical choice for content generation, document analysis with image attachments, and instruction-following workflows. It is well-suited for teams that need a capable, cost-effective model without requiring frontier-level reasoning.

At this price point and capability level, Mistral Medium 3.1 is a strong option for agencies producing client-facing content at volume, particularly where vision input is occasionally needed alongside text generation.

Assessed June 6, 2026

Editorial notes

Mistral Medium 3.1 from Mistral delivers balanced reasoning, vision support, and competitive pricing at $0.40/1M input, with tool use and function calling across a 131K context window.

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

Performance Profile

Intelligence3.5Technical3.2Value7.3Content3.4
Intelligence 3.5/10
Technical 3.2/10
Content 3.4/10
Value 7.3/10

How Mistral: Mistral Medium 3.1 compares

Mistral: Mistral Medium 3.1 ranks #167 of 378 AI models we track for overall intelligence, #155 of 315 for coding, #155 of 289 for agentic tasks. Its 131K-token context window is larger than 60% of the models we list. At $0.40 per million input tokens it is cheaper than 38% of comparable models.

About Mistral: Mistral Medium 3.1

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 professional models.

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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
1,626ms
Best Latency (TTFT)
15 tok/s
Best Throughput
1/1
Active Endpoints
Available via: Mistral

Leaderboard Categories

Frequently asked questions about Mistral: Mistral Medium 3.1

How much does Mistral: Mistral Medium 3.1 cost?

Mistral: Mistral Medium 3.1 costs $0.40 per million input tokens and $2.00 per million output tokens.

What is the context window of Mistral: Mistral Medium 3.1?

Mistral: Mistral Medium 3.1 has a context window of 131,072 tokens (131K).

Is Mistral: Mistral Medium 3.1 good for coding?

On our coding benchmark index, Mistral: Mistral Medium 3.1 ranks #155 of 315 models, placing it in the broader range of the field for code generation and debugging.

What can Mistral: Mistral Medium 3.1 do?

Mistral: Mistral Medium 3.1 supports image/vision input, tool use, and function calling.

Who created Mistral: Mistral Medium 3.1?

Mistral: Mistral Medium 3.1 is developed by Mistral and was released on August 13, 2025.