GPT-6 Luna (High) vs Kimi K3.1 Pro
Which is better for the money: GPT-6 Luna (High) by OpenAI or Kimi K3.1 Pro by Kimi? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
Kimi K3.1 Pro scores 22.2 points higher (55.1 vs 32.9) but costs 65× as much to run the benchmark ($3117 vs $47.9; flagship vs budget cost classes). They are not alternatives at one budget: pick Kimi K3.1 Pro when you need intelligence above 32.9, and GPT-6 Luna (High) when 32.9 is enough.
| Metric | GPT-6 Luna (High) | Kimi K3.1 Pro | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 32.9 | 55.1 | +67.5% Kimi K3.1 Pro is 67.5% more intelligent |
| Total AA cost (lower is better) | $47.85 | $3,117.31 | +6414.8% Kimi K3.1 Pro is 65× more expensive |
| End-to-end time (lower is better) | 12.43s | 42.64s | +243.0% Kimi K3.1 Pro is 243.0% slower |
| Price per 1M tokens (in / out) | $0.10 / $0.50 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
Kimi K3.1 Pro vs GPT-6 Luna (High): 67.5% more intelligence, 6414.8% more cost to run the AA benchmark, and 243.0% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-6 Luna (High) is on today's frontier: nothing is both smarter and cheaper.
- Kimi K3.1 Pro is on today's frontier: nothing is both smarter and cheaper.
GPT-6 Luna (High)Kimi K3.1 ProToday's Pareto frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-6-luna-high/kimi-k3-1-pro · Markdown: /api/v1/compare/gpt-6-luna-high/kimi-k3-1-pro?format=md · llms.txt · agent skill