GPT-5.6 Sol (Max) vs GPT-6.1 Sol (Xhigh)

Which is better for the money: GPT-5.6 Sol (Max) by OpenAI or GPT-6.1 Sol (Xhigh) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.

Clear winner

OpenAIGPT-5.6 Sol (Max)Off the frontier

Intelligence: 47.00
Total cost: $3465

OpenAIGPT-6.1 Sol (Xhigh)On the frontier

Intelligence: 51.00
Total cost: $662

Verdict

Pick GPT-6.1 Sol (Xhigh)

GPT-6.1 Sol (Xhigh) vs GPT-5.6 Sol (Max): 8.5% more intelligence, 80.9% less cost to run the AA benchmark, and 22.1% slower end-to-end.

Metric	GPT-5.6 Sol (Max)	GPT-6.1 Sol (Xhigh)	Difference
Intelligence (higher is better)	47.0	51.0	+8.5% GPT-6.1 Sol (Xhigh) is 8.5% more intelligent
Total AA cost (lower is better)	$3,464.84	$662.28	−80.9% GPT-6.1 Sol (Xhigh) is 80.9% cheaper
End-to-end time (lower is better)	113.20s	138.20s	+22.1% GPT-6.1 Sol (Xhigh) is 22.1% slower
Price per 1M tokens (in / out)	$4.00 / $20.0	$2.00 / $10.0
Input modalities	Text, Image	Text, Image

Open this matchup in the interactive picker GPT-5.6 Sol (Max): what beats it GPT-6.1 Sol (Xhigh): what beats it

Today's Pareto frontier

Against the frontier

GPT-5.6 Sol (Max) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
GPT-6.1 Sol (Xhigh) is on today's frontier: nothing is both smarter and cheaper.

GPT-5.6 Sol (Max)GPT-6.1 Sol (Xhigh)Today's Pareto frontierEvery other model

Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-6-sol/gpt-6-1-sol-xhigh · Markdown: /api/v1/compare/gpt-5-6-sol/gpt-6-1-sol-xhigh?format=md · llms.txt · agent skill