[Bug] Anthropic API Error: Incompatible model for tool advisor when using claude-fable-5

Bug Description
just getting this message on repeat since upgrading: Fable 5 is here! Our newest model for complex, long-running work ▎ Included in your plan limits until Jun 22, then switch to usage credits to continue. ❯ what worktrees do we have locally ⏺ API Error: 400 tools.10.model: 'claude-opus-4-8' cannot be used as an advisor when the request model is 'claude-fable-5'.

Environment Info

• Platform: darwin
• Terminal: iTerm.app
• Version: 2.1.170
• Feedback ID: 7945f31e-74f9-465a-b9cd-8d217cdf1b41

Errors

[{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"tools.10.model: 'claude-opus-4-8' cannot be used as an advisor when the request model is 'claude-fable-5'.\"},\"request_id\":\"req_011CbtgQnjCkaXnj6ii1dDzB\"}\n    at generate (/$bunfs/root/src/entrypoints/cli.js:11:68106)\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:51:7694)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-06-10T01:04:41.934Z"}]