GLM-5.1 (Reasoning) vs Qwen3.5 122B A10B (Reasoning)
Which is better for the money: GLM-5.1 (Reasoning) by Z AI or Qwen3.5 122B A10B (Reasoning) by Alibaba? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
GLM-5.1 (Reasoning) scores 10.5 points higher (26.1 vs 15.6) but costs 2.2× as much to run the benchmark ($1487 vs $661; both premium class). Pick GLM-5.1 (Reasoning) when the extra intelligence is worth the premium, otherwise Qwen3.5 122B A10B (Reasoning).
| Metric | GLM-5.1 (Reasoning) | Qwen3.5 122B A10B (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 26.1 | 15.6 | −40.2% Qwen3.5 122B A10B (Re… is 40.2% less intelligent |
| Total AA cost (lower is better) | $1,486.78 | $661.29 | −55.5% Qwen3.5 122B A10B (Re… is 55.5% cheaper |
| End-to-end time (lower is better) | 61.77s | 21.36s | −65.4% Qwen3.5 122B A10B (Re… is 65.4% faster |
| Price per 1M tokens (in / out) | $1.28 / $4.07 | $0.40 / $3.20 | |
| Input modalities | Text | Text, Image |
Qwen3.5 122B A10B (Reasoning) vs GLM-5.1 (Reasoning): 40.2% less intelligence, 55.5% less cost to run the AA benchmark, and 65.4% faster end-to-end.
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.
- Qwen3.5 122B A10B (Reasoning) is off the frontier: at the same or lower cost, GPT-6.1 Sol (High) scores 50.20 for $521.
GLM-5.1 (Reasoning)Qwen3.5 122B A10B (Reasoning)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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