GLM-5.2 (max) vs GPT-5.5 (xhigh)

Z AI · OpenAI · catalog 2026-09-14

GLM-5.2 (max) beats GPT-5.5 (xhigh): cheaper ($0.902 vs $4.35/M) and at least as smart (index 38.6 vs 38.6).

	GLM-5.2 (max)	GPT-5.5 (xhigh)
Speed (tok/s)	67.6 measured	79.7 measured
Blended $/M	$0.902 derived	$4.35 derived
Intelligence index	38.6 measured	38.6 measured
TTFT (ms)	422 measured	411 measured
Context	1049k list	1050k list
Coding index	69 measured	75 measured
Agentic index	39 measured	37 measured

GLM-5.2 (max) card · GPT-5.5 (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.