GET

/v1/schemas/stability/image/v2beta/stable-image/upscale/conservative

Accept:

kind inputactivity imagehash 86123ba4…extracted Sep 16, 2026version currentsource upstream spec ↗

field	recorded source
schema	Source linked above. upstream-spec Source trace `1ea5455da5ce2efef103daa142cc44a3e70b4fb3cfcdfa0c9a6a6f46d93912ea` { "fetchedAt": 1789536057, "extractorVersion": "1", "verifiedAt": null }

Request body

6 properties · 2 required · 4 $defs

property	type	description	constraints
image*	string	The image you wish to upscale.	format: binary
prompt*	string	What you wish to see in the output image. A strong, descriptive prompt that clearly defines elements, colors, and subjects will lead to better results.	length ≥ 1 · length ≤ 10000
negative_prompt	string	A blurb of text describing what you do not wish to see in the output image. This is an advanced feature.	length ≤ 10000
seed	number	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
output_format	enum	Dictates the `content-type` of the generated image.	jpeg \| png \| webp · default: "png"
creativity	number	Controls the likelihood of creating additional details not heavily conditioned by the init image.	0.2 ≤ n ≤ 0.5 · default: 0.35

Types

4 $defs

Creativitynumber

Controls the likelihood of creating additional details not heavily conditioned by the init image.

0.2 ≤ n ≤ 0.5 · default: 0.35

NegativePromptstring

A blurb of text describing what you **do not** wish to see in the output image. This is an advanced feature.

length ≤ 10000

Promptstring

What you wish to see in the output image. A strong, descriptive prompt that clearly defines elements, colors, and subjects will lead to better results.

length ≥ 1 · length ≤ 10000

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/upscale/conservative","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}