GPT-6.1 Sol (Max) vs Kimi K3.1 Pro

Which is better for the money: GPT-6.1 Sol (Max) 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

OpenAIGPT-6.1 Sol (Max)On the frontier

Intelligence: 51.80
Total cost: $1082

KimiKimi K3.1 ProOn the frontier

Intelligence: 55.10
Total cost: $3117

Verdict

Depends on your budget

Kimi K3.1 Pro scores 3.3 points higher (55.1 vs 51.8) but costs 2.9× as much to run the benchmark ($3117 vs $1082; flagship vs premium cost classes). Pick Kimi K3.1 Pro when the extra intelligence is worth the premium, otherwise GPT-6.1 Sol (Max).

Metric	GPT-6.1 Sol (Max)	Kimi K3.1 Pro	Difference
Intelligence (higher is better)	51.8	55.1	+6.4% Kimi K3.1 Pro is 6.4% more intelligent
Total AA cost (lower is better)	$1,081.55	$3,117.31	+188.2% Kimi K3.1 Pro is 2.9× more expensive
End-to-end time (lower is better)	220.48s	42.64s	−80.7% Kimi K3.1 Pro is 80.7% faster
Price per 1M tokens (in / out)	$2.00 / $10.0	$2.00 / $10.0
Input modalities	Text, Image	Text, Image

Kimi K3.1 Pro vs GPT-6.1 Sol (Max): 6.4% more intelligence, 188.2% more cost to run the AA benchmark, and 80.7% faster end-to-end.

Open this matchup in the interactive picker GPT-6.1 Sol (Max): what beats it Kimi K3.1 Pro: what beats it

Today's Pareto frontier

Against the frontier

GPT-6.1 Sol (Max) 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-6.1 Sol (Max)Kimi K3.1 ProToday's Pareto frontierEvery other model

Matchup

Compare something else

Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-6-1-sol/kimi-k3-1-pro · Markdown: /api/v1/compare/gpt-6-1-sol/kimi-k3-1-pro?format=md · llms.txt · agent skill