GLM-5.1 (Reasoning) vs Mistral Medium 3.5
Which is better for the money: GLM-5.1 (Reasoning) by Z AI or Mistral Medium 3.5 by Mistral? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Trade-off
Verdict
Depends on your budget
GLM-5.1 (Reasoning) scores 11.9 points higher (26.1 vs 14.2) but costs 1.2× as much to run the benchmark ($1487 vs $1264; both premium class). Pick GLM-5.1 (Reasoning) when the extra intelligence is worth the premium, otherwise Mistral Medium 3.5.
| Metric | GLM-5.1 (Reasoning) | Mistral Medium 3.5 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 26.1 | 14.2 | −45.6% Mistral Medium 3.5 is 45.6% less intelligent |
| Total AA cost (lower is better) | $1,486.78 | $1,263.80 | −15.0% Mistral Medium 3.5 is 15.0% cheaper |
| End-to-end time (lower is better) | 60.66s | 17.77s | −70.7% Mistral Medium 3.5 is 70.7% faster |
| Price per 1M tokens (in / out) | $1.28 / $4.07 | $1.50 / $7.50 | |
| Input modalities | Text | Text, Image |
Mistral Medium 3.5 vs GLM-5.1 (Reasoning): 45.6% less intelligence, 15.0% less cost to run the AA benchmark, and 70.7% 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.
- Mistral Medium 3.5 is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GLM-5.1 (Reasoning)Mistral Medium 3.5Today'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/mistral-medium-3-5 · Markdown: /api/v1/compare/glm-5-1/mistral-medium-3-5?format=md · llms.txt · agent skill