Guides
Grok AI Context Window Size (2026): Exact Token Limits for Every Model
Grok’s context window size depends entirely on which model you call: 500,000 tokens for the flagship Grok 4.5, 1,000,000 for Grok 4.3, 2,000,000 across the entire Grok 4.20 family, and 256,000 for the Grok Build
July 20, 2026 No Comments