GLM-5.3 (Low) vs LongCat 2.0
Which is better for the money: GLM-5.3 (Low) by Z AI or LongCat 2.0 by LongCat? 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-5.3 (Low) scores 15.2 points higher (34.3 vs 19.1) but costs 1.9× as much to run the benchmark ($1013 vs $545; both premium class). Pick GLM-5.3 (Low) when the extra intelligence is worth the premium, otherwise LongCat 2.0.
| Metric | GLM-5.3 (Low) | LongCat 2.0 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 34.3 | 19.1 | −44.3% LongCat 2.0 is 44.3% less intelligent |
| Total AA cost (lower is better) | $1,012.50 | $544.74 | −46.2% LongCat 2.0 is 46.2% cheaper |
| End-to-end time (lower is better) | 31.17s | 35.51s | +13.9% LongCat 2.0 is 13.9% slower |
| Price per 1M tokens (in / out) | $1.40 / $4.40 | $0.75 / $2.95 | |
| Input modalities | Text | Text |
LongCat 2.0 vs GLM-5.3 (Low): 44.3% less intelligence, 46.2% less cost to run the AA benchmark, and 13.9% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GLM-5.3 (Low) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
- LongCat 2.0 is off the frontier: at the same or lower cost, GPT-6.1 Sol (High) scores 50.20 for $521.
GLM-5.3 (Low)LongCat 2.0Today'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-5-3-low/longcat-2-0 · Markdown: /api/v1/compare/glm-5-3-low/longcat-2-0?format=md · llms.txt · agent skill