Getting started

Errors

Every failure uses a standard HTTP status code and the same JSON envelope — branch on success before you read anything else.

Two kinds of failure A request error (bad key, bad parameter, over quota) comes back synchronously as a non-2xx response with the envelope below. A generation failure happens later: the create call returns 200, then the asset ends at taskStatus: 3 — and its credits are refunded automatically. Read errorCategory / errorDetail on the asset to see why. See Async & polling.

Error envelope

error response

{
  "success": false,
  "error": {
    "code": 14001,
    "message": "Insufficient credit",
    "httpStatus": 402,
    "timestamp": "2026-08-05T09:12:00.000Z",
    "path": "/v1/models/from-text"
  }
}

There is no data on an error. error.code is a stable numeric identifier — switch on it, not on error.message, which is human-readable and may change.

error.details on some codes A few errors add an error.details object with the live numbers behind the failure — e.g. 13002 returns { "total": 15, "maxTotal": 15 }. Read those instead of hard-coding limits into your client.

HTTP status codes

Status	Meaning
`400`	Validation — bad or missing parameter, unsupported engine/format, or an unreadable image.
`401`	API key missing, invalid, or revoked.
`402`	Insufficient credits to cover the job.
`403`	Account not entitled to the API — no active subscription or completed credit purchase.
`404`	Asset or collection not found, or not owned by your key.
`413`	An uploaded file exceeded 20 MB.
`429`	Rate limit (`10003`), too many concurrent generations in flight (`13002`), or an upstream engine's quota — exceeded. Back off and retry.
`500` · `503` · `504`	Server error, maintenance, or an upstream engine timeout. Retry with backoff.

Error code catalog

The codes you're most likely to meet on /v1. The numeric code is stable across releases.

Code	HTTP	When it happens
1001	`401`	API key missing, invalid, or revoked.
6014	`403`	Account has no active subscription or completed credit purchase — not entitled to the API.
14001	`402`	Wallet can't cover the job. Top up, or check `GET /v1/credits`.
2001	`400`	A field failed validation (type, range, or length).
2012	`400`	Prompt or image was blocked by the content policy.
7002	`413`	An upload exceeded the 20 MB limit.
7003	`400`	Unsupported upload format.
13001	`404`	Unknown asset id, or the asset isn't owned by your key.
13005	`400`	Remesh source must be an AI-generated model — uploads can't be re-meshed.
13008	`400`	Animate source isn't riggable — needs a clear humanoid or animal form.
10003	`429`	Over the per-IP or per-user rate limit.
13002	`429`	Too many generations already in flight — see concurrency limits. Nothing is charged; retry once a slot frees.
20001	`504`	A generation engine timed out. Safe to retry.
20002	`429`	An engine's capacity is momentarily full. Retry after a short wait.
20004	`400`	An engine rejected the input (e.g. an image it can't process).

Handling

Retry 429, 500, 503, 504 with exponential backoff — start ~1 s, cap ~30 s, five tries.
Don't retry 400, 401, 403, 404 — fix the request instead.
On 429, slow your cadence: the limits are 240 requests/min per IP and 120 generation requests/min per user.
A job that fails after a 200 (taskStatus: 3) is refunded automatically — you're billed only for successful generations.