18:00
2026-09-10
llmstatus.ai
large-language-models
Grok 4.1 Fast (Reasoning) deprecated
XAI's Grok 4.1 Fast (Reasoning) model, released 2025-11-19 with a 128k context window and 30k max output, has been marked deprecated with no announced retirement date, according to a provider announceβ¦