GET

/v1/schemas/fal/image/luma/agent/uni-1/v1/text-to-image

Accept:

kind inputactivity imagehash 64118e3d…extracted Oct 9, 2026version currentsource upstream spec ↗

field	recorded source
schema	Source linked above. upstream-spec Source trace `a06127d939112e1e3753726374657ccfec06b3313c57ad2a04005690fee951c2` { "fetchedAt": 1791522002, "extractorVersion": "1", "verifiedAt": null }

Request body

7 properties · 1 required · 0 $defs

property	type	description	constraints
prompt*	string	Text prompt describing the image to generate.	length ≥ 1 · length ≤ 6000
style	enum	Visual style of the generated image.	auto \| manga · default: "auto"
output_format	enum	Encoding format of the generated image.	png \| jpeg · nullable
reference_image_urls	string[]	Optional list of reference image URLs used to guide the generation.	items ≤ 9 · nullable
aspect_ratio	enum	Aspect ratio of the generated image.	3:1 \| 2:1 \| 16:9 \| 3:2 \| 1:1 \| 2:3 · +3 more · nullable
enable_web_search	boolean	When true, the model may consult the web for references.	default: false
enable_safety_checker	boolean	Authorized callers may set false to request relaxed screening.	default: true

Validate a payload

before you spend tokens

shell

$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"luma/agent/uni-1/v1/text-to-image","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}