Grok 4.3

class A live

xAI's flagship chat model; 1M-token context, text+image input, tuned for reasoning, coding and agentic tasks at a low API price.

Layer 1 — factual axes

API & price	$1.25 / $2.50 per 1M	official	source ↗ 2026-07-04
Context	1M	official	source ↗ 2026-07-04
Weights	closed	official	source ↗ 2026-07-04
Multimodal	text+image	official	source ↗ 2026-07-04
Free tier	limited (chat app)	secondary	source ↗ 2026-07-04

Layer 2 — output quality

38 / 100

Artificial Analysis Intelligence Index ↗ measured 2026-07-04

Eligible for Best free Best for API Multimodal

xAI’s flagship chat model; 1M-token context, text+image input, tuned for reasoning, coding and agentic tasks at a low API price.