GLM-5.3-Flash vs GPT-5.4 mini (Xhigh)
Which is better for the money: GLM-5.3-Flash by Z AI or GPT-5.4 mini (Xhigh) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Clear winner
Verdict
Pick GLM-5.3-Flash
GPT-5.4 mini (Xhigh) vs GLM-5.3-Flash: 42.3% less intelligence, 398.8% more cost to run the AA benchmark, and 197.6% slower end-to-end.
| Metric | GLM-5.3-Flash | GPT-5.4 mini (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 41.8 | 24.1 | −42.3% GPT-5.4 mini (Xhigh) is 42.3% less intelligent |
| Total AA cost (lower is better) | $305.52 | $1,524.02 | +398.8% GPT-5.4 mini (Xhigh) is 5.0× more expensive |
| End-to-end time (lower is better) | 38.89s | 115.75s | +197.6% GPT-5.4 mini (Xhigh) is 197.6% slower |
| Price per 1M tokens (in / out) | $0.15 / $0.50 | $0.75 / $4.50 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- GLM-5.3-Flash is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
- GPT-5.4 mini (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GLM-5.3-FlashGPT-5.4 mini (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-flash/gpt-5-4-mini · Markdown: /api/v1/compare/glm-5-3-flash/gpt-5-4-mini?format=md · llms.txt · agent skill