GLM-5.3 (Low) vs Grok 4.6 (Xhigh)
Which is better for the money: GLM-5.3 (Low) by Z AI or Grok 4.6 (Xhigh) by SpaceXAI? 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
Grok 4.6 (Xhigh) scores 9.9 points higher (44.2 vs 34.3) but costs 2.2× as much to run the benchmark ($2242 vs $1013; flagship vs premium cost classes). Pick Grok 4.6 (Xhigh) when the extra intelligence is worth the premium, otherwise GLM-5.3 (Low).
| Metric | GLM-5.3 (Low) | Grok 4.6 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 34.3 | 44.2 | +28.9% Grok 4.6 (Xhigh) is 28.9% more intelligent |
| Total AA cost (lower is better) | $1,012.50 | $2,241.91 | +121.4% Grok 4.6 (Xhigh) is 2.2× more expensive |
| End-to-end time (lower is better) | 30.92s | 39.83s | +28.8% Grok 4.6 (Xhigh) is 28.8% slower |
| Price per 1M tokens (in / out) | $1.40 / $4.40 | $2.00 / $6.00 | |
| Input modalities | Text | Text, Image |
Grok 4.6 (Xhigh) vs GLM-5.3 (Low): 28.9% more intelligence, 121.4% more cost to run the AA benchmark, and 28.8% 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.
- Grok 4.6 (Xhigh) is off the frontier: at the same or lower cost, Claude Opus 5.5 (High, Default Fallback) scores 53.60 for $2172.
GLM-5.3 (Low)Grok 4.6 (Xhigh)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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