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Anthropic Claude Sonnet 4.6 VS Mistral Mistral Medium 3.1

Claude Sonnet 4.6 vs Mistral Medium 3.1: which wins at real work?

22 task areas · same graded test runs · rank comparison only, so 0–100 and Elo collections never mix raw scores.

Claude Sonnet 4.6 wins 21 of 22 task areas we tested; Mistral Medium 3.1 takes 1. Mistral Medium 3.1 costs 7.5× less per token ($2.4 vs $18 per 1M).

21
Task areas won
1
76
Avg percentile
23
3
Top-3 finishes
0
$18.0
Price / 1M tokens
$2.4
Anthropic
Provider
Mistral

Mistral Medium 3.1 costs 7.5× less per token ($2.4 vs $18 per 1M).

Task by task

Task area Claude Sonnet 4.6 Mistral Medium 3.1 Winner
AI Strategy #3 / 126
Strong
#120 / 126
Usable
Claude Sonnet 4.6
Chef / Home Cooking #20 / 126
Usable
#116 / 126
Needs editing
Claude Sonnet 4.6
Executive Assistant #1 / 112
Strong
#94 / 112
Usable
Claude Sonnet 4.6
Creative & Comedy #19 / 110 #100 / 110 Claude Sonnet 4.6
Data & Analytics #6 / 110
Excellent
#87 / 110
Excellent
Claude Sonnet 4.6
Coding #29 / 115
Strong
#108 / 115
Needs editing
Claude Sonnet 4.6
Content & Brand #31 / 124
Strong
#110 / 124
Needs editing
Claude Sonnet 4.6
Sales #13 / 110
Strong
#92 / 110
Usable
Claude Sonnet 4.6
Presentations & Decks #35 / 110
Excellent
#105 / 110
Usable
Claude Sonnet 4.6
Research & Competitive Analysis #35 / 110
Strong
#105 / 110
Weak
Claude Sonnet 4.6
Legal & HR #3 / 110
Excellent
#70 / 110
Strong
Claude Sonnet 4.6
Investor & Pitch #4 / 66
Strong
#65 / 66
Needs editing
Claude Sonnet 4.6
Landing Pages #5 / 72
Strong
#63 / 72
Usable
Claude Sonnet 4.6
Customer Support #62 / 113
Strong
#110 / 113
Needs editing
Claude Sonnet 4.6
Knowledge & Docs #35 / 110
Strong
#77 / 110
Usable
Claude Sonnet 4.6
Translation & Localization #13 / 110
Excellent
#53 / 110
Excellent
Claude Sonnet 4.6
RAG, Safety & Grounding #73 / 113
Excellent
#111 / 113
Strong
Claude Sonnet 4.6
Training & Education #9 / 110
Excellent
#47 / 110
Excellent
Claude Sonnet 4.6
Structured Output #105 / 113
Usable
#91 / 113
Strong
Mistral Medium 3.1
Frontend & Landing Pages #23 / 109
Needs editing
#35 / 109
Needs editing
Claude Sonnet 4.6
Product & Project Management #48 / 110
Strong
#50 / 110
Strong
Claude Sonnet 4.6
Summarization & Meeting Notes #37 / 110
Excellent
#39 / 110
Excellent
Claude Sonnet 4.6

Rank = position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.

Frequently asked

Is Claude Sonnet 4.6 better than Mistral Medium 3.1?

Across 22 task areas we benchmarked, Claude Sonnet 4.6 ranks higher in 21 and Mistral Medium 3.1 in 1.

Which is cheaper, Claude Sonnet 4.6 or Mistral Medium 3.1?

Mistral Medium 3.1 costs 7.5× less per token ($2.4 vs $18 per 1M).

What is Claude Sonnet 4.6 better at?

Claude Sonnet 4.6 out-ranks Mistral Medium 3.1 at AI Strategy, Chef / Home Cooking, Executive Assistant.

What is Mistral Medium 3.1 better at?

Mistral Medium 3.1 out-ranks Claude Sonnet 4.6 at Structured Output.

Full Claude Sonnet 4.6 review → Full Mistral Medium 3.1 review → Full model leaderboard →

More comparisons

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Prompt × model results

12 test cases · 3 evals
Claude Opus
GPT-5
Gemini
v1
7.1
6.8
7.4
v2
8.3
7.9
8.0
v3
9.2
8.6
8.4
Best combo: v3 × Claude Opus
9.2 quality · $0.004/run · 1.8s