Grok 4.1 Fast 20.2% Hallucination xAI Worst Model

https://www.deltabookmarks.win/ai-for-legal-briefs-that-a-real-lawyer-would-sign-off-on

Grok-3 vs Grok 4 Comparison: Balancing Hallucination and Speed Grok Model Evolution and Hallucination Rates As of March 2026, Grok 4.1 has shaken up the AI community with a surprisingly high hallucination rate of 20