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MoonshotAI Kimi K2.5 VS Qwen Qwen3.5 Plus 2026-02-15

Kimi K2.5 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 12 of 22 task areas we tested; Kimi K2.5 takes 10. Qwen3.5 Plus 2026-02-15 costs 1.3× less per token ($1.82 vs $2.4 per 1M).

10
Task areas won
12
68
Avg percentile
68
0
Top-3 finishes
1
$2.4
Price / 1M tokens
$1.82
MoonshotAI
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 Kimi K2.5 Qwen3.5 Plus 2026-02-15 Winner
Summarization & Meeting Notes #92 / 110
Excellent
#46 / 110
Excellent
Qwen3.5 Plus 2026-02-15
Research & Competitive Analysis #31 / 110
Strong
#73 / 110
Usable
Kimi K2.5
Executive Assistant #23 / 112
Strong
#61 / 112
Strong
Kimi K2.5
Coding #38 / 115
Strong
#71 / 115
Strong
Kimi K2.5
Customer Support #50 / 113
Strong
#18 / 113
Strong
Qwen3.5 Plus 2026-02-15
Creative & Comedy #42 / 110 #71 / 110 Kimi K2.5
Presentations & Decks #12 / 110
Excellent
#40 / 110
Excellent
Kimi K2.5
Product & Project Management #66 / 110
Strong
#40 / 110
Strong
Qwen3.5 Plus 2026-02-15
Translation & Localization #34 / 110
Excellent
#10 / 110
Excellent
Qwen3.5 Plus 2026-02-15
Frontend & Landing Pages #26 / 109
Needs editing
#3 / 109
Usable
Qwen3.5 Plus 2026-02-15
Structured Output #41 / 113
Excellent
#18 / 113
Excellent
Qwen3.5 Plus 2026-02-15
Legal & HR #31 / 110
Excellent
#13 / 110
Excellent
Qwen3.5 Plus 2026-02-15
Landing Pages #20 / 72
Strong
#36 / 72
Strong
Kimi K2.5
Training & Education #22 / 110
Excellent
#6 / 110
Excellent
Qwen3.5 Plus 2026-02-15
Content & Brand #33 / 124
Strong
#45 / 124
Strong
Kimi K2.5
Knowledge & Docs #59 / 110
Usable
#51 / 110
Usable
Qwen3.5 Plus 2026-02-15
Sales #19 / 110
Strong
#27 / 110
Strong
Kimi K2.5
Data & Analytics #19 / 110
Excellent
#26 / 110
Excellent
Kimi K2.5
RAG, Safety & Grounding #12 / 113
Excellent
#7 / 113
Excellent
Qwen3.5 Plus 2026-02-15
AI Strategy #28 / 126
Strong
#32 / 126
Strong
Kimi K2.5
Chef / Home Cooking #44 / 126
Usable
#40 / 126
Usable
Qwen3.5 Plus 2026-02-15
Investor & Pitch #37 / 66
Usable
#36 / 66
Usable
Qwen3.5 Plus 2026-02-15

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

Same task, both models — judged

Both models answered the same test case; an independent judge graded each. Quotes are the judge's actual rationale.

Summarization & Meeting Notes

Glow & Grain staff meeting (non-tech) (Executive Summary)
Kimi K2.5 26/100

“The model hallucinated a deadline and incorrectly categorized a tangent as a business outcome.”

Qwen3.5 Plus 2026-02-15 99/100

“The summary is highly faithful, accurately capturing the deferred decisions, caveats, and action items with correct owners and dates. It includes a brief mention of the birthday tangent which was ideally to be ignored, but it is separated under a 'Social' header and does not distort business outcomes.”

Frequently asked

Is Kimi K2.5 better than Qwen3.5 Plus 2026-02-15?

Across 22 task areas we benchmarked, Qwen3.5 Plus 2026-02-15 ranks higher in 12 and Kimi K2.5 in 10.

Which is cheaper, Kimi K2.5 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 Kimi K2.5 better at?

Kimi K2.5 out-ranks Qwen3.5 Plus 2026-02-15 at Research & Competitive Analysis, Executive Assistant, Coding.

What is Qwen3.5 Plus 2026-02-15 better at?

Qwen3.5 Plus 2026-02-15 out-ranks Kimi K2.5 at Summarization & Meeting Notes, Customer Support, Product & Project Management.

Full Kimi K2.5 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.

  • Generate test cases from your prompt — no eval set required to start.
  • Compare models side by side with quality, cost and latency in one matrix.
  • Optimise the winner until the scores say it's ready to ship.
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