claude-code - 💡(How to fix) Fix [Bug] Claude Opus 4.6 Model Performance Degradation [1 participants]

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anthropics/claude-code#45307Fetched 2026-04-09 08:08:23
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Bug Description I can feel its not that smart then before, even with max effort opus 4.6 it never get things done. The opus 4.6 is even worse then gemini 3.1 now whats happening????

Environment Info

  • Platform: darwin
  • Terminal: tmux
  • Version: 2.1.92
  • Feedback ID: 2f5ab720-96ee-4bde-bacd-0b8977aee914

extent analysis

TL;DR

The issue may be related to a regression in opus 4.6, and trying an earlier version like gemini 3.1 could be a potential workaround.

Guidance

  • Compare the performance of opus 4.6 with gemini 3.1 to verify if the issue is indeed related to the version.
  • Check if there are any known issues or bugs reported for opus 4.6 that could be causing the problem.
  • Consider providing more specific details about what "never get things done" means, such as error messages or specific tasks that are failing.

Notes

The issue lacks specific technical details, making it difficult to provide a more targeted solution. More information about the exact problems encountered with opus 4.6 would be necessary to provide a more accurate diagnosis.

Recommendation

Apply workaround: Try using an earlier version like gemini 3.1, as it is reported to have worked better in the past.

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