GLM-5.2 (Max) vs GPT-6 Luna (Medium)
Which is better for the money: GLM-5.2 (Max) by Z AI or GPT-6 Luna (Medium) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Trade-off
Verdict
Depends on your budget
GLM-5.2 (Max) scores 3.8 points higher (33.7 vs 29.9) but costs 67× as much to run the benchmark ($2097 vs $31.2; flagship vs budget cost classes). They are not alternatives at one budget: pick GLM-5.2 (Max) when you need intelligence above 29.9, and GPT-6 Luna (Medium) when 29.9 is enough.
| Metric | GLM-5.2 (Max) | GPT-6 Luna (Medium) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 33.7 | 29.9 | −11.3% GPT-6 Luna (Medium) is 11.3% less intelligent |
| Total AA cost (lower is better) | $2,097.29 | $31.17 | −98.5% GPT-6 Luna (Medium) is 98.5% cheaper |
| End-to-end time (lower is better) | 28.14s | 8.25s | −70.7% GPT-6 Luna (Medium) is 70.7% faster |
| Price per 1M tokens (in / out) | $1.40 / $4.40 | $0.10 / $0.50 | |
| Input modalities | Text | Text, Image |
GPT-6 Luna (Medium) vs GLM-5.2 (Max): 11.3% less intelligence, 98.5% less cost to run the AA benchmark, and 70.7% faster end-to-end.
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-6 Luna (Medium) is on today's frontier: nothing is both smarter and cheaper.
GLM-5.2 (Max)GPT-6 Luna (Medium)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/glm-5-2/gpt-6-luna-medium · Markdown: /api/v1/compare/glm-5-2/gpt-6-luna-medium?format=md · llms.txt · agent skill