gpt-oss-120b (High) vs Kimi K3.1 Pro
Which is better for the money: gpt-oss-120b (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 43.5 points higher (55.1 vs 11.6) but costs 25× as much to run the benchmark ($3117 vs $123; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Kimi K3.1 Pro when you need intelligence above 11.6, and gpt-oss-120b (High) when 11.6 is enough.
| Metric | gpt-oss-120b (High) | Kimi K3.1 Pro | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 11.6 | 55.1 | +375.0% Kimi K3.1 Pro is 4.8× more intelligent |
| Total AA cost (lower is better) | $122.71 | $3,117.31 | +2440.4% Kimi K3.1 Pro is 25× more expensive |
| End-to-end time (lower is better) | 12.38s | 42.64s | +244.4% Kimi K3.1 Pro is 244.4% slower |
| Price per 1M tokens (in / out) | $0.15 / $0.60 | $2.00 / $10.0 | |
| Input modalities | Text | Text, Image |
Kimi K3.1 Pro vs gpt-oss-120b (High): 375.0% more intelligence, 2440.4% more cost to run the AA benchmark, and 244.4% slower end-to-end.
Today's Pareto frontier
Against the frontier
- gpt-oss-120b (High) is off the frontier: at the same or lower cost, GPT-6 Luna (Max) scores 38.10 for $122.
- Kimi K3.1 Pro is on today's frontier: nothing is both smarter and cheaper.
gpt-oss-120b (High)Kimi K3.1 ProToday's Pareto frontierOpen-weights frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-oss-120b/kimi-k3-1-pro · Markdown: /api/v1/compare/gpt-oss-120b/kimi-k3-1-pro?format=md · llms.txt · agent skill