Confirm Action

Are you sure you want to proceed?

OpenAI GPT-5.4 VS MoonshotAI Kimi K2.6

GPT-5.4 vs Kimi K2.6: 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.

Kimi K2.6 wins 12 of 22 task areas we tested; GPT-5.4 takes 10. Kimi K2.6 costs 4.3× less per token ($4.07 vs $17.5 per 1M).

10
Task areas won
12
84
Avg percentile
86
3
Top-3 finishes
3
$17.5
Price / 1M tokens
$4.07
OpenAI
Provider
MoonshotAI

Kimi K2.6 costs 4.3× less per token ($4.07 vs $17.5 per 1M).

Task by task

Task area GPT-5.4 Kimi K2.6 Winner
Product & Project Management #13 / 110
Excellent
#53 / 110
Strong
GPT-5.4
Sales #41 / 110
Usable
#15 / 110
Strong
Kimi K2.6
Training & Education #69 / 110
Strong
#45 / 110
Excellent
Kimi K2.6
Knowledge & Docs #1 / 110
Excellent
#22 / 110
Strong
GPT-5.4
Data & Analytics #42 / 110
Excellent
#23 / 110
Excellent
Kimi K2.6
AI Strategy #37 / 126
Strong
#19 / 126
Strong
Kimi K2.6
Research & Competitive Analysis #1 / 110
Excellent
#19 / 110
Excellent
GPT-5.4
Executive Assistant #25 / 112
Strong
#8 / 112
Strong
Kimi K2.6
Content & Brand #7 / 124
Strong
#22 / 124
Strong
GPT-5.4
Chef / Home Cooking #19 / 126
Strong
#7 / 126
Strong
Kimi K2.6
RAG, Safety & Grounding #29 / 113
Excellent
#18 / 113
Excellent
Kimi K2.6
Customer Support #13 / 113
Strong
#4 / 113
Strong
Kimi K2.6
Summarization & Meeting Notes #11 / 110
Excellent
#3 / 110
Excellent
Kimi K2.6
Investor & Pitch #7 / 66
Strong
#1 / 66
Strong
Kimi K2.6
Creative & Comedy #6 / 110 #11 / 110 GPT-5.4
Structured Output #9 / 113
Excellent
#14 / 113
Excellent
GPT-5.4
Translation & Localization #17 / 110
Excellent
#22 / 110
Excellent
GPT-5.4
Coding #9 / 115
Excellent
#5 / 115
Excellent
Kimi K2.6
Frontend & Landing Pages #5 / 109
Usable
#8 / 109
Usable
GPT-5.4
Legal & HR #20 / 110
Excellent
#22 / 110
Excellent
GPT-5.4
Landing Pages #22 / 72
Strong
#21 / 72
Strong
Kimi K2.6
Presentations & Decks #1 / 110
Excellent
#2 / 110
Excellent
GPT-5.4

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

Frequently asked

Is GPT-5.4 better than Kimi K2.6?

Across 22 task areas we benchmarked, Kimi K2.6 ranks higher in 12 and GPT-5.4 in 10.

Which is cheaper, GPT-5.4 or Kimi K2.6?

Kimi K2.6 costs 4.3× less per token ($4.07 vs $17.5 per 1M).

What is GPT-5.4 better at?

GPT-5.4 out-ranks Kimi K2.6 at Product & Project Management, Knowledge & Docs, Research & Competitive Analysis.

What is Kimi K2.6 better at?

Kimi K2.6 out-ranks GPT-5.4 at Sales, Training & Education, Data & Analytics.

Full GPT-5.4 review → Full Kimi K2.6 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