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Mistral Medium 3

API ID mistral-medium-2505

Mistral Medium 3 was a Mistral model, released May 2025. It had a 128,000-token context window. It took image and PDF input and supported function calling and structured outputs.

Our frontier-class multimodal model released May 2025. Learn more in our [blog post](https://mistral.ai/news/mistral-medium-3/)

Mistral's description
Status
Retired
Released
May 2025
Shutdown
Aug 31, 2026

mistral-medium-2505 stopped serving on August 31, 2026. Recommended replacement: mistral-medium-3-5.

How to migrate to Mistral Medium 3.5

Benchmarks

Scores as each source published them
or

Comparing with Mistral Medium 1.0, the previous model in this line. A score is compared only with the same benchmark from the same source, at the same setting where both have it. Full comparison: prices, limits, features

Arena

ArenaMistral Medium 3Mistral Medium 1.0ChangeRankDateSource
Text
By category
  • Math 1348 rank 216 vs 1220 (+128)
  • Creative writing 1364 rank 163 vs 1193 (+171)
  • Instruction following 1365 rank 192 vs 1211 (+154)
  • Hard prompts 1401 rank 186 vs 1236 (+165)
  • Long prompts 1392 rank 178 vs 1221 (+171)
  • Multi-turn 1403 rank 160 vs 1196 (+207)
  • Expert 1378 rank 201 vs 1227 (+151)
1387 ±51223 ±5+164180 of 415
32,783 votes		Oct 13, 2026source
Text: Coding1432 ±81263 ±10+169182 of 410
5,843 votes		Oct 13, 2026source
Vision1155 ±8not rated114 of 165
10,800 votes		Oct 9, 2026source

Rated as mistral-medium-2505; Mistral Medium 1.0 as mistral-medium. Ratings come from people voting between two anonymous answers; Text and Vision are style-controlled, as on arena.ai. Data: Arena (arena.ai), CC BY 4.0.

Epoch AI

BenchmarkMistral Medium 3Mistral Medium 1.0ChangeSettingRunSource
GPQA Diamond59.5%not runMay 7, 2025source
MATH Level 581.6%not runMay 7, 2025source
OTIS Mock AIME 2024-202532.2%not runMay 7, 2025source

Run independently by Epoch AI. Data: Epoch AI, Capabilities & benchmarking (epoch.ai/benchmarks), CC BY.

On cloud platforms

All platform dates
PlatformPlatform IDStateShutdownTime leftReplacementSource
Microsoft Foundryversion 1mistral-medium-2505Activenone announced—source

Read daily from each platform's own pages. The shutdown date and countdown on this page use Mistral's own date.

Features

Compare models
FeatureValueSinceSource
Structured outputsThe model can be held to a JSON schema you supply, so every reply parses without retries or cleanup.Supportedin place when tracking began (October 6, 2026)source
Function callingAlso called tool use. You describe functions; the model replies with a function name and arguments for your code to run, then uses the result.Supportedin place when tracking began (October 6, 2026)source
Batch APISend many requests as one job that runs in the background, usually finished within 24 hours, at a lower price than live requests.Supportedin place when tracking began (October 6, 2026)source
Image inputImages such as screenshots, photos and charts can go in the prompt for the model to read.Supportedin place when tracking began (October 6, 2026)source
PDF inputPDF files can go in the prompt directly, without converting them to text first.Supportedin place when tracking began (October 6, 2026)source
Context windowThe most the model can work with in one request, in tokens: your prompt, conversation history and files. A token is about three-quarters of an English word.128,000 tokensin place when tracking began (October 6, 2026)source

Not published by Mistral: Prompt caching, Reasoning / thinking, Fine-tuning, Built-in web search, temperature parameter, top_p parameter, logprobs, Max output tokens.

Price history

USD per 1M tokens, standard tier
$0.00$0.50$1.00$1.50$2.00$2.50Oct 2026In $0.40Out $2.00Oct 5, 2026 to Oct 15, 2026: Input $0.40, Output $2.00
$0.00$0.50$1.00$1.50$2.00$2.50Oct 2026In $0.40Out $2.00Oct 5, 2026 to Oct 15, 2026: Input $0.40, Output $2.00

We started recording this model's prices on Oct 5, 2026. The history grows with each daily check.

Show as a table
FromTypePrice
Oct 5, 2026Input$0.40
Oct 5, 2026Output$2.00

Prices

USD per 1M tokens, every type and band, by tier
TypePrice $/1MIn effect
Standard
input$0.40
output$2.00

Changelog

Changes we detected on Mistral's pages

No changes recorded yet.

Last checked · Sources: Mistral models