Gemini 3.8 Flash (Medium) vs GLM-5.3-Flash
Which is better for the money: Gemini 3.8 Flash (Medium) by Google or GLM-5.3-Flash by Z AI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Clear winner
Verdict
Pick GLM-5.3-Flash
GLM-5.3-Flash vs Gemini 3.8 Flash (Medium): 5.0% more intelligence, 72.2% less cost to run the AA benchmark, and end-to-end time not fully reported.
| Metric | Gemini 3.8 Flash (Medium) | GLM-5.3-Flash | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 39.8 | 41.8 | +5.0% GLM-5.3-Flash is 5.0% more intelligent |
| Total AA cost (lower is better) | $1,100.06 | $305.52 | −72.2% GLM-5.3-Flash is 72.2% cheaper |
| End-to-end time (lower is better) | Not reported | 39.33s | — not comparable |
| Price per 1M tokens (in / out) | $0.75 / $3.75 | $0.15 / $0.50 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
Today's Pareto frontier
Against the frontier
- Gemini 3.8 Flash (Medium) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- GLM-5.3-Flash is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
Gemini 3.8 Flash (Medium)GLM-5.3-FlashToday's Pareto frontierOpen-weights frontierEvery other model
Matchup
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