GPT-5.6 Sol (high) vs Grok 4.6 (medium)

OpenAI · SpaceXAI · catalog 2026-09-14

Grok 4.6 (medium) beats GPT-5.6 Sol (high): cheaper ($1.35 vs $3.08/M) and at least as smart (index 43 vs 42.5).

	GPT-5.6 Sol (high)	Grok 4.6 (medium)
Speed (tok/s)	60.7 measured	50 measured
Blended $/M	$3.08 derived	$1.35 derived
Intelligence index	42.5 measured	43 measured
TTFT (ms)	1549 measured	2329 measured
Context	—	—
Coding index	77 measured	74 measured
Agentic index	45 measured	51 measured

GPT-5.6 Sol (high) card · Grok 4.6 (medium) 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.