GPT-5.5 (High) vs Kimi K3.1 Pro
Which is better for the money: GPT-5.5 (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 2026-10-25.
Clear winner
Verdict
Pick Kimi K3.1 Pro
Kimi K3.1 Pro vs GPT-5.5 (High): 48.9% more intelligence, 8.6% less cost to run the AA benchmark, and 153.3% slower end-to-end.
| Metric | GPT-5.5 (High) | Kimi K3.1 Pro | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 37.0 | 55.1 | +48.9% Kimi K3.1 Pro is 48.9% more intelligent |
| Total AA cost (lower is better) | $3,410.76 | $3,117.31 | −8.6% Kimi K3.1 Pro is 8.6% cheaper |
| End-to-end time (lower is better) | 19.56s | 49.55s | +153.3% Kimi K3.1 Pro is 153.3% slower |
| Price per 1M tokens (in / out) | $5.00 / $30.0 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- GPT-5.5 (High) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
- Kimi K3.1 Pro is on today's frontier: nothing is both smarter and cheaper.
GPT-5.5 (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-5-5-high/kimi-k3-1-pro · Markdown: /api/v1/compare/gpt-5-5-high/kimi-k3-1-pro?format=md · llms.txt · agent skill