GPT-5.5 (High) vs Kimi K3 (Max)

Which is better for the money: GPT-5.5 (High) by OpenAI or Kimi K3 (Max) by Kimi? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.

Trade-off

OpenAIGPT-5.5 (High)Off the frontier

Intelligence: 37.00
Total cost: $3411

KimiKimi K3 (Max)Off the frontier

Intelligence: 43.60
Total cost: $3658

Verdict

Depends on your budget

Kimi K3 (Max) scores 6.6 points higher (43.6 vs 37.0) but costs 1.1× as much to run the benchmark ($3658 vs $3411; both flagship class). Pick Kimi K3 (Max) when the extra intelligence is worth the premium, otherwise GPT-5.5 (High).

Metric	GPT-5.5 (High)	Kimi K3 (Max)	Difference
Intelligence (higher is better)	37.0	43.6	+17.8% Kimi K3 (Max) is 17.8% more intelligent
Total AA cost (lower is better)	$3,410.76	$3,658.07	+7.3% Kimi K3 (Max) is 7.3% more expensive
End-to-end time (lower is better)	19.79s	63.08s	+218.7% Kimi K3 (Max) is 218.7% slower
Price per 1M tokens (in / out)	$5.00 / $30.0	$3.00 / $15.0
Input modalities	Text, Image	Text, Image

Kimi K3 (Max) vs GPT-5.5 (High): 17.8% more intelligence, 7.3% more cost to run the AA benchmark, and 218.7% slower end-to-end.

Open this matchup in the interactive picker GPT-5.5 (High): what beats it Kimi K3 (Max): what beats it

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 (Max) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.

GPT-5.5 (High)Kimi K3 (Max)Today's Pareto frontierOpen-weights frontierEvery other model

Matchup

Compare something else

Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-5-high/kimi-k3 · Markdown: /api/v1/compare/gpt-5-5-high/kimi-k3?format=md · llms.txt · agent skill