Gemini 3.1 Pro Preview vs GLM-5.3-Flash
Which is better for the money: Gemini 3.1 Pro Preview 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 2026-10-25.
Clear winner
Verdict
Pick GLM-5.3-Flash
GLM-5.3-Flash vs Gemini 3.1 Pro Preview: 40.7% more intelligence, 84.2% less cost to run the AA benchmark, and 59.9% slower end-to-end.
| Metric | Gemini 3.1 Pro Preview | GLM-5.3-Flash | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 29.7 | 41.8 | +40.7% GLM-5.3-Flash is 40.7% more intelligent |
| Total AA cost (lower is better) | $1,935.39 | $305.52 | −84.2% GLM-5.3-Flash is 84.2% cheaper |
| End-to-end time (lower is better) | 24.32s | 38.89s | +59.9% GLM-5.3-Flash is 59.9% slower |
| Price per 1M tokens (in / out) | $2.00 / $12.0 | $0.15 / $0.50 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
Today's Pareto frontier
Against the frontier
- Gemini 3.1 Pro Preview 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 3.1 Pro PreviewGLM-5.3-FlashToday'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/gemini-3-1-pro-preview/glm-5-3-flash · Markdown: /api/v1/compare/gemini-3-1-pro-preview/glm-5-3-flash?format=md · llms.txt · agent skill