Mistral Medium 3.1 vs Qwen3.5 Plus 2026-02-15: 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.
Qwen3.5 Plus 2026-02-15 wins 21 of 22 task areas we tested; Mistral Medium 3.1 takes 1. Qwen3.5 Plus 2026-02-15 costs 1.3× less per token ($1.82 vs $2.4 per 1M).
Qwen3.5 Plus 2026-02-15 costs 1.3× less per token ($1.82 vs $2.4 per 1M).
Task by task
| Task area | Mistral Medium 3.1 | Qwen3.5 Plus 2026-02-15 | Winner |
|---|---|---|---|
| RAG, Safety & Grounding |
#111
/ 113
Strong
|
#7
/ 113
Excellent
|
Qwen3.5 Plus 2026-02-15 |
| Customer Support |
#110
/ 113
Needs editing
|
#18
/ 113
Strong
|
Qwen3.5 Plus 2026-02-15 |
| AI Strategy |
#120
/ 126
Usable
|
#32
/ 126
Strong
|
Qwen3.5 Plus 2026-02-15 |
| Chef / Home Cooking |
#116
/ 126
Needs editing
|
#40
/ 126
Usable
|
Qwen3.5 Plus 2026-02-15 |
| Structured Output |
#91
/ 113
Strong
|
#18
/ 113
Excellent
|
Qwen3.5 Plus 2026-02-15 |
| Content & Brand |
#110
/ 124
Needs editing
|
#45
/ 124
Strong
|
Qwen3.5 Plus 2026-02-15 |
| Presentations & Decks |
#105
/ 110
Usable
|
#40
/ 110
Excellent
|
Qwen3.5 Plus 2026-02-15 |
| Sales |
#92
/ 110
Usable
|
#27
/ 110
Strong
|
Qwen3.5 Plus 2026-02-15 |
| Data & Analytics |
#87
/ 110
Excellent
|
#26
/ 110
Excellent
|
Qwen3.5 Plus 2026-02-15 |
| Legal & HR |
#70
/ 110
Strong
|
#13
/ 110
Excellent
|
Qwen3.5 Plus 2026-02-15 |
| Translation & Localization |
#53
/ 110
Excellent
|
#10
/ 110
Excellent
|
Qwen3.5 Plus 2026-02-15 |
| Training & Education |
#47
/ 110
Excellent
|
#6
/ 110
Excellent
|
Qwen3.5 Plus 2026-02-15 |
| Coding |
#108
/ 115
Needs editing
|
#71
/ 115
Strong
|
Qwen3.5 Plus 2026-02-15 |
| Executive Assistant |
#94
/ 112
Usable
|
#61
/ 112
Strong
|
Qwen3.5 Plus 2026-02-15 |
| Frontend & Landing Pages |
#35
/ 109
Needs editing
|
#3
/ 109
Usable
|
Qwen3.5 Plus 2026-02-15 |
| Research & Competitive Analysis |
#105
/ 110
Weak
|
#73
/ 110
Usable
|
Qwen3.5 Plus 2026-02-15 |
| Creative & Comedy | #100 / 110 | #71 / 110 | Qwen3.5 Plus 2026-02-15 |
| Investor & Pitch |
#65
/ 66
Needs editing
|
#36
/ 66
Usable
|
Qwen3.5 Plus 2026-02-15 |
| Landing Pages |
#63
/ 72
Usable
|
#36
/ 72
Strong
|
Qwen3.5 Plus 2026-02-15 |
| Knowledge & Docs |
#77
/ 110
Usable
|
#51
/ 110
Usable
|
Qwen3.5 Plus 2026-02-15 |
| Product & Project Management |
#50
/ 110
Strong
|
#40
/ 110
Strong
|
Qwen3.5 Plus 2026-02-15 |
| Summarization & Meeting Notes |
#39
/ 110
Excellent
|
#46
/ 110
Excellent
|
Mistral Medium 3.1 |
Rank = position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.
Frequently asked
Is Mistral Medium 3.1 better than Qwen3.5 Plus 2026-02-15?
Across 22 task areas we benchmarked, Qwen3.5 Plus 2026-02-15 ranks higher in 21 and Mistral Medium 3.1 in 1.
Which is cheaper, Mistral Medium 3.1 or Qwen3.5 Plus 2026-02-15?
Qwen3.5 Plus 2026-02-15 costs 1.3× less per token ($1.82 vs $2.4 per 1M).
What is Mistral Medium 3.1 better at?
Mistral Medium 3.1 out-ranks Qwen3.5 Plus 2026-02-15 at Summarization & Meeting Notes.
What is Qwen3.5 Plus 2026-02-15 better at?
Qwen3.5 Plus 2026-02-15 out-ranks Mistral Medium 3.1 at RAG, Safety & Grounding, Customer Support, AI Strategy.
More comparisons
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