[Bug] Claude 3.5 Opus performance degradation: 25+ minutes for simple implementation tasks

Open 💬 0 comments Opened Jun 23, 2026 by marian-ciortea-mt

Bug Description
Opus 4.8 is very slow. It takes ~25 minutes for a clear implementation task.

Environment Info

  • Platform: darwin
  • Terminal: iTerm.app
  • Version: 2.1.186
  • Feedback ID: 1197f557-da0f-46d7-aa15-370dbfb37ea9

Errors

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