GLM-5.2 (max) vs GPT-5.4 (xhigh)

Z AI · OpenAI · catalog 2026-09-14

Trade-off: GLM-5.2 (max) is cheaper ($0.902 vs $2.175/M); GPT-5.4 (xhigh) scores higher on intelligence (39 vs 38.6).

	GLM-5.2 (max)	GPT-5.4 (xhigh)
Speed (tok/s)	67.6 measured	131.5 measured
Blended $/M	$0.902 derived	$2.175 derived
Intelligence index	38.6 measured	39 measured
TTFT (ms)	422 measured	9001 measured
Context	1049k list	1050k list
Coding index	69 measured	71 measured
Agentic index	not measured for both

GLM-5.2 (max) card · GPT-5.4 (xhigh) card · 3D observatory

Verdicts use price×intelligence dominance only, and only where both sides are measured; null cells stay null with their provenance (em-dash = not in catalog). Percentile-free by design — this page compares two models, not the field. Generated page — do not hand-edit.