GLM-5.3 (Max) vs GPT-6 Sol (Xhigh)
Which is better for the money: GLM-5.3 (Max) by Z AI or GPT-6 Sol (Xhigh) 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-5.3 (Max) scores 0.6 points higher (44.8 vs 44.2) but costs 2.9× as much to run the benchmark ($2503 vs $855; flagship vs premium cost classes). Pick GLM-5.3 (Max) when the extra intelligence is worth the premium, otherwise GPT-6 Sol (Xhigh).
| Metric | GLM-5.3 (Max) | GPT-6 Sol (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 44.8 | 44.2 | −1.3% GPT-6 Sol (Xhigh) is 1.3% less intelligent |
| Total AA cost (lower is better) | $2,503.48 | $854.60 | −65.9% GPT-6 Sol (Xhigh) is 65.9% cheaper |
| End-to-end time (lower is better) | 28.73s | 42.43s | +47.7% GPT-6 Sol (Xhigh) is 47.7% slower |
| Price per 1M tokens (in / out) | $1.40 / $4.40 | $2.00 / $10.0 | |
| Input modalities | Text | Text, Image |
GPT-6 Sol (Xhigh) vs GLM-5.3 (Max): 1.3% less intelligence, 65.9% less cost to run the AA benchmark, and 47.7% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GLM-5.3 (Max) is off the frontier: at the same or lower cost, Claude Opus 5.5 (High, Default Fallback) scores 53.60 for $2172.
- GPT-6 Sol (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
GLM-5.3 (Max)GPT-6 Sol (Xhigh)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-5-3/gpt-6-sol-xhigh · Markdown: /api/v1/compare/glm-5-3/gpt-6-sol-xhigh?format=md · llms.txt · agent skill