GLM-5.3-Flash vs GPT-6.1 Sol (Max)
Which is better for the money: GLM-5.3-Flash by Z AI or GPT-6.1 Sol (Max) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
GPT-6.1 Sol (Max) scores 10.0 points higher (51.8 vs 41.8) but costs 3.5× as much to run the benchmark ($1082 vs $306; premium vs mid-range cost classes). They are not alternatives at one budget: pick GPT-6.1 Sol (Max) when you need intelligence above 41.8, and GLM-5.3-Flash when 41.8 is enough.
| Metric | GLM-5.3-Flash | GPT-6.1 Sol (Max) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 41.8 | 51.8 | +23.9% GPT-6.1 Sol (Max) is 23.9% more intelligent |
| Total AA cost (lower is better) | $305.52 | $1,081.55 | +254.0% GPT-6.1 Sol (Max) is 3.5× more expensive |
| End-to-end time (lower is better) | 39.33s | 220.48s | +460.6% GPT-6.1 Sol (Max) is 460.6% slower |
| Price per 1M tokens (in / out) | $0.15 / $0.50 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6.1 Sol (Max) vs GLM-5.3-Flash: 23.9% more intelligence, 254.0% more cost to run the AA benchmark, and 460.6% slower end-to-end.
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-6.1 Sol (Max) is on today's frontier: nothing is both smarter and cheaper.
GLM-5.3-FlashGPT-6.1 Sol (Max)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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