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).
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.
More comparisons
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