[Bug] Fable 5 model unavailable as advisor option
Resolved 💬 0 comments Opened Jun 12, 2026 by sergey-zhizhko Closed Jun 12, 2026
Bug Description
fable 5 is not available as advisor.
Environment Info
- Platform: darwin
- Terminal: ghostty
- Version: 2.1.172
- Feedback ID: 47a5ee58-3360-4e64-a4bf-4d9c8f70bf51
Errors
[{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"tools.12.model: 'claude-opus-4-8' cannot be used as an advisor when the request model is 'claude-fable-5'.\"},\"request_id\":\"req_011CbyKq6fhcRy89HB1wjrQY\"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:12:66015)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:52:7694)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-06-12T11:57:46.746Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"tools.12.model: 'claude-opus-4-8' cannot be used as an advisor when the request model is 'claude-fable-5'.\"},\"request_id\":\"req_011CbyKrN6RPktYRkjKLAGFS\"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:12:66015)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:52:7694)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-06-12T11:58:04.080Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"tools.12.model: 'claude-opus-4-8' cannot be used as an advisor when the request model is 'claude-fable-5'.\"},\"request_id\":\"req_011CbyKrvwsCHXHvpzz4psbN\"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:12:66015)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:52:7694)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-06-12T11:58:11.473Z"}]