GLM-5.3 (Low) vs GPT-6.1 Terra (High)

Which is better for the money: GLM-5.3 (Low) by Z AI or GPT-6.1 Terra (High) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.

Clear winner

Z AIGLM-5.3 (Low)Off the frontier

Intelligence: 34.30
Total cost: $1013

OpenAIGPT-6.1 Terra (High)Off the frontier

Intelligence: 43.90
Total cost: $239

Verdict

Pick GPT-6.1 Terra (High)

GPT-6.1 Terra (High) vs GLM-5.3 (Low): 28.0% more intelligence, 76.4% less cost to run the AA benchmark, and 63.9% faster end-to-end.

Metric	GLM-5.3 (Low)	GPT-6.1 Terra (High)	Difference
Intelligence (higher is better)	34.3	43.9	+28.0% GPT-6.1 Terra (High) is 28.0% more intelligent
Total AA cost (lower is better)	$1,012.50	$238.53	−76.4% GPT-6.1 Terra (High) is 76.4% cheaper
End-to-end time (lower is better)	30.92s	11.16s	−63.9% GPT-6.1 Terra (High) is 63.9% faster
Price per 1M tokens (in / out)	$1.40 / $4.40	$1.00 / $5.00
Input modalities	Text	Text, Image

Open this matchup in the interactive picker GLM-5.3 (Low): what beats it GPT-6.1 Terra (High): what beats it

Today's Pareto frontier

Against the frontier

GLM-5.3 (Low) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
GPT-6.1 Terra (High) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.

GLM-5.3 (Low)GPT-6.1 Terra (High)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-5-3-low/gpt-6-1-terra-high · Markdown: /api/v1/compare/glm-5-3-low/gpt-6-1-terra-high?format=md · llms.txt · agent skill