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grok-4

Developed by xAI. Explore the 2 variants available in this generation.

Grok 4.5

xAI

xAI

API

Jul 2026

Lineage
grok-4 (Frontier)

Grok 4.3

xAI

xAI

API

Apr 2026

Lineage
grok-4 (Frontier)

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