Mistral: Mistral Medium 3

mistralai · Released May 7, 2025
DFO score #261 / 706
14.8 leaderboard score
Speed #281 / 338
45.5 tok/s
Input Price #435 / 706
$0.400 per 1M tokens
Output Price #468 / 706
$2.00 per 1M tokens
Context #350 / 706
131,072 tokens

Analysis Summary

Mistral Medium 3 is a multimodal model with vision and file input, tool use, function calling, and a 131K context window. Its measured results show some coding and general task capability, but the reasoning index and long-context performance are limited. The rates are low relative to premium models, making cost a clear practical advantage.

It can fit straightforward document processing, visual input, and tool-assisted tasks where a lower price is important and the workflow can tolerate human checks. The benchmark profile does not support relying on it for difficult reasoning, long-document synthesis, or high-stakes autonomous execution. Teams should also test its output quality on their own content formats before scaling.

Use Medium 3 as a cost-conscious option for bounded workloads rather than a flagship. Escalate complex tasks to a stronger model when accuracy and depth are critical.

Assessed September 23, 2026

Editorial notes

Mistral Medium 3 offers vision, file input, tool use, and a 131K context window at low listed rates; its measured reasoning and long-context results limit its fit for complex work.

The DFO score ranks models on the Artificial Analysis Intelligence Index and is refreshed as new models launch. The write-up and verdict are our own. Feedback?

DFO Verdict

Mistral Medium 3 offers vision, file input, tool use, and a 131K context window at low listed rates; its measured reasoning and long-context results limit its fit for complex work.

#261 of 706 overall Down 4 this week

Benchmarks

Intelligence Index 9.0 #252 of 439 · Artificial Analysis
Coding Index Not published yet Artificial Analysis
Agentic Index Not published yet Artificial Analysis
Creative Writing Not rated Arena rating
Instruction Following Not rated Arena rating
GPQA Diamond 57.8%
HLE 4.3%
MMLU Pro 76%
MATH 500 90.7%
AIME 44%
AIME 2025 30.3%
SciCode 33.1%
LiveCodeBench 40%
TerminalBench Hard 3.8%
τ²-Bench 24.3%
IFBench 39.3%
LCR 28%

Artificial Analysis data refreshed Oct 15, 2026. Arena ratings from the Oct 13, 2026 text leaderboard, with style control. Bars: magenta = reasoning, ink = coding and agents, cyan = instructions and long context.

Artificial Analysis has not published coding or agentic results for Mistral: Mistral Medium 3 yet. Until it does, the model sits below tested models on the Coding and AI Agents lists.

How Mistral: Mistral Medium 3 compares

Mistral: Mistral Medium 3 ranks #252 of 439 AI models we track for overall intelligence. Its 131K-token context window is larger than 50% of the models we list. At $0.40 per million input tokens it is cheaper than 38% of comparable models.

Position in the field
DFO score: ahead of 63% of models #261
Speed: faster than 17% of models #281
Price: cheaper than 38% of models #435
Context: larger than 50% of models #350
worst in fieldmedianbest in field
Price vs frontier peers · $ per 1M tokens
Mistral: Mistral Medium 3 $0.40 in $2.00 out
Anthropic: Claude Opus 5.5 $4.00 in $20.00 out
Google: Gemini 4 Argon $2.00 in $10.00 out
Anthropic: Claude Fable 5.1 $10.00 in $50.00 out

Dark bar = input · light bar = output, scaled to the priciest peer.

Context window vs peers · tokens

1M tokens ≈ 8 full-length novels or ~2,500 pages of business documents in a single request.

Pricing

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

What would Mistral: Mistral Medium 3 cost your business?

Pick the job that looks most like yours, then fine-tune with the sliders. Estimates update live.

A website chatbot handling around 100 customer conversations a day, a few short messages each.

3,000
One request is one message, email, draft or automation call.
1,200 tokens

$3.17/mo Mistral: Mistral Medium 3 $0.0011 per request
$31.68/mo Anthropic: Claude Opus 5.5 $0.01 per request
$7.92/mo Google: Gemini 4 Argon (batch) · best value $0.0026 per request

Full calculator with 706 models → Price Calculator

DFO AI AUTOMATION

These numbers get smaller with the right architecture.

We route routine calls to cheap models and save Mistral: Mistral Medium 3 for the hard ones. Most clients cut their estimate by 60-80%.

Talk to our team

About Mistral: Mistral Medium 3

Mistral Medium 3 is a high-performance enterprise-grade language model designed to deliver frontier-level capabilities at significantly reduced operational cost. It balances state-of-the-art reasoning and multimodal performance with 8× lower cost..

Frequently asked questions about Mistral: Mistral Medium 3

How much does Mistral: Mistral Medium 3 cost?

Mistral: Mistral Medium 3 costs $0.40 per million input tokens and $2.00 per million output tokens.

What is the context window of Mistral: Mistral Medium 3?

Mistral: Mistral Medium 3 has a context window of 131,072 tokens (131K).

What can Mistral: Mistral Medium 3 do?

Mistral: Mistral Medium 3 supports image/vision input, tool use, and function calling.

Who created Mistral: Mistral Medium 3?

Mistral: Mistral Medium 3 is developed by Mistral and was released on May 7, 2025.

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