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  1. Models
  2. Text
  3. Mistral

Mistral Medium 3.5 Thinking

Mistral Medium 3.5 with reasoning enabled by default (reasoning_effort=high), for complex coding, agentic, and multi-step reasoning prompts.

  • Reasoning
  • Vision
  • Tool Calling
  • Structured Output

Added Apr 30, 2026

Model weights

Pricing

Auto routing · per 1M tokens
Input
$1.50
Output
$7.50
Compare provider prices

Specifications

Context window
256K
Max output
32.8K
Parameters
128B
Avg output (7d)
702 tokens
Longer than 55% of models

Benchmarks

Sourced from LMArena.

Arena Score

1426.5

Overall Rank

#121 / 421

Votes

11,656

Confidence Interval

1420.1 - 1432.9

Category Scores

Coding

#119 / 416

3,255 votes

1478.3

Math

#114 / 404

563 votes

1427.2

Longer Query

#134 / 399

5,030 votes

1429.2

Creative Writing

#113 / 419

2,052 votes

1399.4

Instruction Following

#112 / 421

3,791 votes

1422.8

Hard Prompts

#128 / 421

7,572 votes

1445.0

Additional Categories
21

German

#79 / 320

172 votes

1449.2

Korean

#98 / 289

187 votes

1388.2

English

#110 / 421

5,599 votes

1443.5

Polish

#112 / 244

233 votes

1421.6

Industry Legal And Government

#114 / 393

885 votes

1439.6

Industry Mathematical

#114 / 401

642 votes

1437.7

Industry Software And It Services

#114 / 421

4,548 votes

1469.0

Multi Turn

#117 / 419

1,903 votes

1432.8

Industry Entertainment And Sports And Media

#118 / 419

2,649 votes

1396.9

Exclude Ties

#119 / 421

8,839 votes

1420.2

Industry Business And Management And Financial Operations

#119 / 414

2,242 votes

1430.9

Hard Prompts English

#120 / 419

3,820 votes

1456.8

Industry Writing And Literature And Language

#125 / 420

2,966 votes

1404.6

French

#127 / 301

443 votes

1436.1

Russian

#128 / 385

1,227 votes

1412.4

Non English

#131 / 421

6,057 votes

1406.5

Industry Life And Physical And Social Science

#136 / 419

1,918 votes

1437.0

Chinese

#143 / 395

607 votes

1446.8

Expert

#145 / 371

1,189 votes

1434.6

Spanish

#159 / 303

388 votes

1397.4

Industry Medicine And Healthcare

#163 / 390

842 votes

1420.6

Published 2026-11-09 · Matched as Mistral Medium 3.5

LMArena Dataset

Providers

Auto routing is available for this model. Explicit provider selection is not available.

Auto
Auto
Recommended
$1.50$7.50N/AN/AN/A
Batch API
ProviderInputOutputCached input
Auto
Automistralai/mistral-medium-3.5:thinking
$1.50/M$7.50/MN/A

Batch rows for this model use normal routing and cost the same as standard API requests. Set provider in a row to choose a provider.

Reliability

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