Grok 4.20 Tops Non-Hallucination Leaderboard with 4-Agent Architecture: 2M Context + 65% Hallucination Reduction Analysis
On February 17, 2026, xAI officially released Grok 4.20 Beta. It takes a highly unconventional approach to outperform the competition on the "non-hallucination rate" leaderboard—a space long dominated by the Claude and GPT series. Instead of simply stacking parameters or increasing inference steps, it employs four specialized agents (Grok / Harper / Benjamin / Lucas)…
