[Bug] Opus 4.8 Model Quality Degradation

Open 💬 5 comments Opened Jun 19, 2026 by gincol

Bug Description
The quality of the Opus 4.8 Ultracode model today has been absolutely terrible. I don't understand how you downgraded it so much... without warning. Today it looks like a model from a year ago... you can't do this.

Environment Info

  • Platform: darwin
  • Terminal: iTerm.app
  • Version: 2.1.183
  • Feedback ID: 41ca8cc4-0574-4471-8688-ac359270a990

Errors

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