[Bug] Model downgrade to Opus due to 'bio' keyword parsing in text content

Status Open
Reported on v2.1.245
Maintainer reply None cached
Activity 0 comments · opened Aug 26, 2026

Bug Description
Fable 5 downgraded to Opus 5 during a classical philology project due to a 'bio' issue. My guess is that we are parsing bioGRAPHIES, not doing biochemistry.

Environment Info

  • Platform: win32
  • Terminal: vscode
  • Version: 2.1.245
  • Feedback ID: 9f50f47a-f41a-4eec-a54e-0258bf2ed859

Errors

[{"error":"TelemetrySafeError: VirtualMessageList: itemKeys/messages length desync (keys=311 messages=310 range=[292,311))\n    at zM (B:/~BUN/root/chunk-vfm81a2p.js:23:67475)\n    at oh (B:/~BUN/root/chunk-vfm81a2p.js:23:60790)\n    at Bl (B:/~BUN/root/chunk-8ad8srr7.js:21:19871)\n    at zd (B:/~BUN/root/chunk-8ad8srr7.js:21:37949)\n    at Bv (B:/~BUN/root/chunk-8ad8srr7.js:21:83864)\n    at KR (B:/~BUN/root/chunk-8ad8srr7.js:21:82875)\n    at im (B:/~BUN/root/chunk-8ad8srr7.js:21:82706)\n    at Av (B:/~BUN/root/chunk-8ad8srr7.js:21:79256)\n    at Ae (B:/~BUN/root/chunk-8ad8srr7.js:21:6248)\n    at Ee (B:/~BUN/root/chunk-8ad8srr7.js:21:4783)","timestamp":"2026-08-25T12:43:01.223Z"}]

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