GET

/v1/schemas/stability/image/v2beta/stable-image/generate/ultra?kind=output

kind outputactivity imagehash fad743cd…extracted Nov 5, 2026version currentsource upstream spec ↗
fieldrecorded source
schemaSource linked above.

upstream-spec

Source trace
26d52792b117c3c71d8fd26aff378f194c5f63367d8ffc0eb591e9ade4c85a18
{
  "fetchedAt": 1793856694,
  "extractorVersion": "1",
  "verifiedAt": null
}

Response body

3 properties · 2 required · 1 $defs
propertytypedescriptionconstraints
image*stringThe generated image, encoded to base64.
finish_reason*enumThe reason the generation finished.SUCCESS | CONTENT_FILTERED
seednumber | any

Types

1 $defs

Seednumber

A specific value that is used to guide the 'randomness' of the generation. (Omit this parameter or pass `0` to use a random seed.)

0 ≤ n ≤ 4294967294 · default: 0

Validate a payload

before you spend tokens
shell
$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"stability","endpointId":"v2beta/stable-image/generate/ultra","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}