Grok 4.1

active Active

Grok 4.1 is an active xAI LLM API model. As of May 24, 2026 it has no announced deprecation or retirement date.

Lifecycle & specs

Provider
xAI
API model ID
grok-4-1
Status
active
Released
Nov 19, 2025
Replacement
xai/grok-4-3
Context window
2,000,000 tokens

Source: official xAI documentation ↗ · ✓ verified