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Mistral Mistral Medium 3.1 VS Qwen Qwen3.5 Plus 2026-02-15

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).

1
Task areas won
21
23
Avg percentile
68
0
Top-3 finishes
1
$2.4
Price / 1M tokens
$1.82
Mistral
Provider
Qwen

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.

Full Mistral Medium 3.1 review → Full Qwen3.5 Plus 2026-02-15 review → Full model leaderboard →

More comparisons

This page is Spring Prompt, running in public

We just did this for every model. Do it for your prompt.

The rankings above come from running real tasks through real models and scoring every output. Spring Prompt is that same engine — pointed at your prompt, your test cases, and your definition of good.

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Experiment · Cold outreach email

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