It's insane how lobotomized Opus 4.6 is right now. Even Gemma 4 31B UD IQ3 XXS beat it on the carwash test on my 5070 TI.

Reddit r/LocalLLaMA / 4/9/2026

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Key Points

  • A Reddit user claims Opus 4.6 is performing poorly and describes it as “lobotomized” compared with other models in informal testing.
  • The user reports that Gemma 4 31B (UD IQ3 XXS) reportedly outperformed Opus 4.6 on a “carwash test” using a personal setup with a 5070 Ti.
  • The post is based on subjective, user-run benchmarks rather than an official evaluation or methodology shared by the model developers.