[Bug] API Error 400: role 'system' must precede an 'assistant' message
Open 💬 0 comments Opened Jul 3, 2026 by brendobrien
Bug Description
API Error: 400 messages.67: role 'system' must precede an 'assistant' message or end the array
Environment Info
- Platform: darwin
- Terminal: tmux
- Version: 2.1.199
- Feedback ID: 2dccd8c5-a0f4-46ed-b1a9-518730c3f4e1
Errors
[{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"messages.67: role 'system' must precede an 'assistant' message or end the array\"},\"request_id\":\"req_011Ccf1mSdguaQv3iZbo9gE5\"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:12:71981)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:52:7688)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-07-03T11:04:40.862Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"messages.67: role 'system' must precede an 'assistant' message or end the array\"},\"request_id\":\"req_011Ccf2LTzxeadHbsSnsVJtD\"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:12:71981)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:52:7688)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-07-03T11:12:08.187Z"}]