GET
/v1/schemas/fal/image/fal-ai%2Ffast-fooocus-sdxl%2Fimage-to-image
Accept:
Request body
18 properties · 2 required · 2 $defs| property | type | description | constraints |
|---|---|---|---|
| image_url* | string | The URL of the image to use as a starting point for the generation. | |
| prompt* | string | The prompt to use for generating the image. Be as descriptive as possible for best results. | |
| num_images | integer | The number of images to generate. | 1 ≤ n ≤ 8 · default: 1 |
| format | enum | The format of the generated image. | jpeg | png · default: "jpeg" |
| preserve_aspect_ratio | boolean | If set to true, the aspect ratio of the generated image will be preserved even if the image size is too large. However, if the image is not a multiple of 32 in width or height, it will be resized to the nearest multiple of 32. By default, this snapping to the … | default: false |
| strength | number | determines how much the generated image resembles the initial image | 0.05 ≤ n ≤ 1 · default: 0.95 |
| negative_prompt | string | The negative prompt to use.Use it to address details that you don't want in the image. This could be colors, objects, scenery and even the small details (e.g. moustache, blurry, low resolution). | default: "" |
| enable_refiner | boolean | If set to true, a smaller model will try to refine the output after it was processed. | default: true |
| image_size | ImageSize | enum | The size of the generated image. Leave it none to automatically infer from the prompt image. | nullable · default: null |
| expand_prompt | boolean | If set to true, the prompt will be expanded with additional prompts. | default: true |
| enable_safety_checker | boolean | If set to true, the safety checker will be enabled. | default: true |
| crop_output | boolean | If set to true, the output cropped to the proper aspect ratio after generating. | default: false |
| seed | integer | The same seed and the same prompt given to the same version of Stable Diffusion will output the same image every time. | nullable |
| embeddings | Embedding[] | The list of embeddings to use. | default: [] |
| num_inference_steps | integer | The number of inference steps to perform. | 1 ≤ n ≤ 24 · default: 8 |
| request_id | string | An id bound to a request, can be used with response to identify the request itself. | default: "" |
| guidance_scale | number | The CFG (Classifier Free Guidance) scale is a measure of how close you want the model to stick to your prompt when looking for a related image to show you. | 0 ≤ n ≤ 20 · default: 2 |
| safety_checker_version | enum | The version of the safety checker to use. v1 is the default CompVis safety checker. v2 uses a custom ViT model. | v1 | v2 · default: "v1" |
Validate a payload
before you spend tokensshell
$ curl -X POST https://modelschemas.com/v1/validate \
-d '{"provider":"fal","endpointId":"fal-ai/fast-fooocus-sdxl/image-to-image","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}