ZMIME
Mistral AI · Released May 7, 2025

Mistral Medium 3

Mistral model for multilingual chat, reasoning, and tool-assisted workflows.

  • Proprietary
  • Tool calling
  • Vision
Capability
134.1ECI · #117 of 148
Input
$0.40per 1M tokens
Output
$2.00per 1M tokens
Context
131K131K max output
Pricing

What it costs

Input
$0.40per million tokens
Output
$2.00per million tokens
Blended (3:1)
$0.80pricier than 50% of priced models

Typical monthly bills

Monthly usageEstimated cost
Side project2M input + 0.5M output tokens$1.80
Team assistant25M input + 5M output tokens$20.00
Production app250M input + 50M output tokens$200.00

Official Mistral API price, as listed on models.dev.

Capability

Independent benchmarks

134.1Epoch Capabilities Index
#117 of 148 scored models
88Median 146167

The shaded band is Epoch AI’s confidence range (130.5–135.6); the tick marks the median scored model.

  • GPQA DiamondGraduate-level science questions59.5%
  • OTIS Mock AIME 2024–2025Competition mathematics32.2%

Scores from Epoch AI, run independently of Mistral AI.

Specifications

The details

Lab
Mistral AI
Released
May 7, 2025
Knowledge cutoff
May 2025
Context window
131,072 tokens
Max output
131,072 tokens
Inputs
Text, Images
Output
Text
Reasoning
No
Tool calling
Yes
Structured output
No
Weights
Proprietary
API model ID
mistral-medium-2505on Mistral
Availability
5 API providerslisted on models.dev

Mistral model documentation

Lab-reported

What Mistral AI claims

Published by the lab at launch. Settings vary, so compare these only with care.

BenchmarkScoreSettingSource
Artificial Analysis Coding Index13.6 index—Source
SciCode33.1 percent correct—Source
Terminal-Bench Hard3.8 success rate—Source
Same lab

More from Mistral AI

Questions

About Mistral Medium 3

How much does Mistral Medium 3 cost?

Mistral Medium 3 costs $0.40 input / $2.00 output per million tokens (official Mistral API price). At a 3:1 input-to-output mix that is $0.80 per million tokens, more expensive than 50% of the 360 priced models we track.

What is the context window of Mistral Medium 3?

Mistral Medium 3 accepts up to 131,072 tokens per request and can write up to 131,072 tokens in one response.

How good is Mistral Medium 3?

Epoch AI gives Mistral Medium 3 a Capabilities Index score of 134.1 (likely range 130.5–135.6), ranking it #117 of 148 models Epoch has scored. Epoch AI benchmark results: GPQA Diamond 59.5%, OTIS Mock AIME 2024–2025 32.2%.

Is Mistral Medium 3 open source?

No. Mistral Medium 3 is proprietary; you use it through Mistral’s API or partner platforms.

What inputs does Mistral Medium 3 support?

Mistral Medium 3 accepts text and images and replies in text. It is not a dedicated reasoning model, supports tool calling.

When was Mistral Medium 3 released?

Mistral AI released Mistral Medium 3 on May 7, 2025. Its training data runs to May 2025.

What are the best alternatives to Mistral Medium 3?

The closest current models from other labs on capability, price and release date are GPT-4.1 mini (OpenAI, ECI 135.0, $0.40 / $1.60), QwQ 32B (Alibaba (Qwen), ECI 137.6, $0.66 / $1.00), Llama 4 Maverick 17B Instruct (Meta, ECI 132.2, $0.321 / $0.91) and DeepSeek V3 0324 (DeepSeek, ECI 135.9, $0.24 / $0.90).