Error codes

HTTP	Meaning	Client action
`400`	Invalid closed request	Fix the documented request fields
`401`	Missing, invalid, or revoked key	Replace the key
`402`	Insufficient live credits	Add credits or switch to a test key
`404`	Owned resource not found	Check the opaque ID and account
`409`	Idempotency or state conflict	Read canonical state before retrying
`413`	Input exceeds a published limit	Resize or recompress the image
`422`	Valid syntax but unsupported operation	Use a supported V1 request
`429`	Key, account, or concurrency limit	Back off and honor response metadata
`503`	Managed execution is disabled	Stop submitting and check status

Sanitized generation failure

{
  "code": "generation_failed",
  "message": "Image generation failed."
}

Public errors do not include provider, model, routing, fallback, private cost, or hidden reasoning.

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