GLM-5.1 (Reasoning) vs Qwen3.8 27B (Xhigh)
Which is better for the money: GLM-5.1 (Reasoning) by Z AI or Qwen3.8 27B (Xhigh) by Alibaba? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Clear winner
Verdict
Pick Qwen3.8 27B (Xhigh)
Qwen3.8 27B (Xhigh) vs GLM-5.1 (Reasoning): 29.1% more intelligence, 10.1% less cost to run the AA benchmark, and 6.6% faster end-to-end.
| Metric | GLM-5.1 (Reasoning) | Qwen3.8 27B (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 26.1 | 33.7 | +29.1% Qwen3.8 27B (Xhigh) is 29.1% more intelligent |
| Total AA cost (lower is better) | $1,486.78 | $1,336.09 | −10.1% Qwen3.8 27B (Xhigh) is 10.1% cheaper |
| End-to-end time (lower is better) | 62.92s | 58.77s | −6.6% Qwen3.8 27B (Xhigh) is 6.6% faster |
| Price per 1M tokens (in / out) | $1.28 / $4.07 | $0.50 / $3.00 | |
| Input modalities | Text | Text, Image, Video |
Today's Pareto frontier
Against the frontier
- GLM-5.1 (Reasoning) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- Qwen3.8 27B (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GLM-5.1 (Reasoning)Qwen3.8 27B (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-5-1/qwen3-8-27b · Markdown: /api/v1/compare/glm-5-1/qwen3-8-27b?format=md · llms.txt · agent skill