GLM-5 (Reasoning) vs GPT-5.6 Terra (low)

Z AI · OpenAI · catalog 2026-09-14

GLM-5 (Reasoning) beats GPT-5.6 Terra (low): cheaper ($0.66 vs $1.74/M) and at least as smart (index 27.9 vs 27.9).
GLM-5 (Reasoning)GPT-5.6 Terra (low)
Speed (tok/s)73.2 measured81.1 measured
Blended $/M$0.66 derived$1.74 derived
Intelligence index27.9 measured27.9 measured
TTFT (ms)142 measured153 measured
Context205k list—
Coding indexnot measured for both
Agentic indexnot measured for both

GLM-5 (Reasoning) card · GPT-5.6 Terra (low) 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.