GLM-5.2 (Max) vs GPT-5.6 Terra (Xhigh)

Which is better for the money: GLM-5.2 (Max) by Z AI or GPT-5.6 Terra (Xhigh) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.

Clear winner

Z AIGLM-5.2 (Max)Off the frontier

Intelligence: 33.70
Total cost: $2097

OpenAIGPT-5.6 Terra (Xhigh)Off the frontier

Intelligence: 38.00
Total cost: $1187

Verdict

Pick GPT-5.6 Terra (Xhigh)

GPT-5.6 Terra (Xhigh) vs GLM-5.2 (Max): 12.8% more intelligence, 43.4% less cost to run the AA benchmark, and 3.6% faster end-to-end.

Metric	GLM-5.2 (Max)	GPT-5.6 Terra (Xhigh)	Difference
Intelligence (higher is better)	33.7	38.0	+12.8% GPT-5.6 Terra (Xhigh) is 12.8% more intelligent
Total AA cost (lower is better)	$2,097.29	$1,186.77	−43.4% GPT-5.6 Terra (Xhigh) is 43.4% cheaper
End-to-end time (lower is better)	29.81s	28.74s	−3.6% GPT-5.6 Terra (Xhigh) is 3.6% faster
Price per 1M tokens (in / out)	$1.40 / $4.40	$2.00 / $12.0
Input modalities	Text	Text, Image

Open this matchup in the interactive picker GLM-5.2 (Max): what beats it GPT-5.6 Terra (Xhigh): what beats it

Today's Pareto frontier

Against the frontier

GLM-5.2 (Max) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-5.6 Terra (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.

GLM-5.2 (Max)GPT-5.6 Terra (Xhigh)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/glm-5-2/gpt-5-6-terra-xhigh · Markdown: /api/v1/compare/glm-5-2/gpt-5-6-terra-xhigh?format=md · llms.txt · agent skill