GPT-6 Luna (High) vs Kimi K3 (Max)

Which is better for the money: GPT-6 Luna (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-6 Luna (High)On the frontier

Intelligence: 32.90
Total cost: $47.9

KimiKimi K3 (Max)Off the frontier

Intelligence: 43.60
Total cost: $3658

Verdict

Depends on your budget

Kimi K3 (Max) scores 10.7 points higher (43.6 vs 32.9) but costs 76× as much to run the benchmark ($3658 vs $47.9; flagship vs budget cost classes). They are not alternatives at one budget: pick Kimi K3 (Max) when you need intelligence above 32.9, and GPT-6 Luna (High) when 32.9 is enough.

Metric	GPT-6 Luna (High)	Kimi K3 (Max)	Difference
Intelligence (higher is better)	32.9	43.6	+32.5% Kimi K3 (Max) is 32.5% more intelligent
Total AA cost (lower is better)	$47.85	$3,658.07	+7544.9% Kimi K3 (Max) is 76× more expensive
End-to-end time (lower is better)	12.43s	63.08s	+407.5% Kimi K3 (Max) is 407.5% slower
Price per 1M tokens (in / out)	$0.10 / $0.50	$3.00 / $15.0
Input modalities	Text, Image	Text, Image

Kimi K3 (Max) vs GPT-6 Luna (High): 32.5% more intelligence, 7544.9% more cost to run the AA benchmark, and 407.5% slower end-to-end.

Open this matchup in the interactive picker GPT-6 Luna (High): what beats it Kimi K3 (Max): what beats it

Today's Pareto frontier

Against the frontier

GPT-6 Luna (High) is on today's frontier: nothing is both smarter and cheaper.
Kimi K3 (Max) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.

GPT-6 Luna (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-6-luna-high/kimi-k3 · Markdown: /api/v1/compare/gpt-6-luna-high/kimi-k3?format=md · llms.txt · agent skill