Self-check before contacting support

Most setup mistakes and transient failures can be narrowed down in a few minutes.

1. Preserve the evidence

Before closing the client or retrying, save:

Do not share full API keys, passwords, private data, or complete business content.

Symptom	Check first
401	API key, `Bearer` prefix, and request address
403	Token group, model restriction, IP allowlist, account status, or upstream refusal
404	Base URL and accidental duplicate or missing `/v1`
400	Model, endpoint, parameters, or session state
429	Concurrency and request rate
500 / 502 / 503	Wait 10–30 seconds, then retry only once
504 / 524	Request size, wait time, and service status
`500, not implemented`	Do not retry; check whether `/v1/responses` was used with a Claude model
`no available channel`	Model ID, token group, and current model availability
Image timeout	Do not resubmit the same image task; keep its Request ID

See API error guide for details.

If a new short session works, the original conversation state or request content is likely involved. If it still fails, submit the evidence.

Time (with time zone):
Request ID:
Client and version:
Model:
Endpoint:
Full error text:
Intermittent or persistent:
Tested with a new session:

If an API key is necessary for identification, provide no more than its last six characters.