ReleasedNov 17, 2025 · Nov 17, 2025

Grok 4.1 is out

xAI shipped Grok 4.1.

xAI released Grok 4.1 on Nov 17, 2025.

It follows Grok 4, 131 days earlier. Releases in the xAI Grok line usually land about 131 days apart.

Grok 4.5 replaced it on Jul 8, 2026.

Released

Nov 17, 2025

Line

xAI Grok

Grok 4 (Jul 9, 2025)

Confirmed by

Historical record

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