[Bug] Opus 5 (1M context) repeatedly auto-downgrades to Opus 4.8 on benign messages due to overly strict safeguard

Status Open
Reported on v2.1.222
Maintainer reply None cached
Activity 0 comments · opened Aug 5, 2026

Bug Description
Opus 5 (1M context) keeps getting flagged and auto-switched to Opus 4.8 even on completely innocuous messages. Example: I asked only "am I on model 5 with 1M context?" — a plain confirmation question, no code, no sensitive request — and it still flagged and downgraded. The trigger appears to be conversation context/history rather than the current message, so re-selecting Opus 5 immediately gets flagged again, creating a loop where I cannot stay on Opus 5 for the rest of the session. Request: tune the safeguard so it doesn't repeatedly downgrade on benign follow-up messages, and make it clearer to the user why it triggered.

Environment Info

  • Platform: win32
  • Terminal: null
  • Version: 2.1.222
  • Feedback ID: e5c6b0ae-9b27-46da-ac14-a1975425a2bd

Errors

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