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  1. Monday, April 13, 2026

    Claude Opus 4.6 plummets on BridgeBench after retest — hallucination rate nearly doubles and lab rivalry ignites

    Claude Opus 4.6 nerfed on BridgeBench as Grok takes #1

    CLAUDE OPUS 4.6 IS NERFED. BridgeBench just proved it. Last week Claude Opus 4.6 ranked #2 on the Hallucination benchmark with an accuracy of 83.3%. Today Claude Opus 4.6 was retested and it fell to #10 on the leaderboard with an accuracy of only 68.3%. A 98% increase in hallucination.