Grok Imagine - image to image

Endpoint

POST /images/generations

Full URL: https://modelfold.ai/v1/images/generations

Authentication: every request must include the Authorization: Bearer <API_KEY> header.

Send model parameters directly in the JSON body. Do not wrap them in input. This request waits for generation to finish and returns data[].url; supported media models also offer async jobs, polling and callbacks. Replace example media URLs with your own publicly accessible files. See API gateway for billing and errors.

Input parameters for the generation task

Request Parameters

Body (application/json)

Parameter	Type	Required	Description
model	string	Yes	The model name to use for generation. Required field. - Must be grok-imagine/image-to-image for this endpoint Default："grok-imagine/image-to-image"。 Allowed values：grok-imagine/image-to-image。 Example：grok-imagine/image-to-image。
prompt	string	Yes	Prompt required by the ModelFold gateway; at most 2000 characters. A text description specifying the desired content or style of the generated image. (Max length: 390000 characters) maxLength: 2000. Example：Recreate the Titanic movie poster with two adorable anthropomorphic cats in the same romantic pose at the bow of the ship. The male cat is an orange tabby wearing a vest, standing behind a white long-haired female cat in a lace dress, holding her paws as they stretch forward in the wind. Both cats are photorealistic with detailed fur, wind-swept hair, and dramatic sunset lighting (warm golden highlights, cool blue shadows). Background: the Titanic ship at dusk with four smokestacks, glowing deck lights, calm ocean, and orange-pink sunset sky. Center title: “CATANIC” in the same gold metallic serif style as Titanic, same size and position.。
image_urls	array<string>	Yes	1–5 image URLs. (Use file URLs after upload, not raw file content. Accepted types: image/jpeg, image/png, image/webp. Max size: 10.0MB per image.) In your prompt, reference the uploaded image by typing @image(n) followed by a space (for example: @image1 a sunset over the ocean). maxItems: 5.
nsfw_checker	boolean	No	Defaults to false. When false, no additional content filtering is applied and results are returned directly by the model.

Request Example

curl -X POST "https://modelfold.ai/v1/images/generations" \
  -H "Authorization: Bearer $MODELFOLD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "grok-imagine/image-to-image",
  "image_urls": [
    "https://example.com/reference.png"
  ],
  "prompt": "Recreate the Titanic movie poster with two adorable anthropomorphic cats in the same romantic pose at the bow of the ship. The male cat is an orange tabby wearing a vest, standing behind a white long-haired female cat in a lace dress, holding her paws as they stretch forward in the wind. Both cats are photorealistic with detailed fur, wind-swept hair, and dramatic sunset lighting (warm golden highlights, cool blue shadows). Background: the Titanic ship at dusk with four smokestacks, glowing deck lights, calm ocean, and orange-pink sunset sky. Center title: “CATANIC” in the same gold metallic serif style as Titanic, same size and position."
}'

{
  "model": "grok-imagine/image-to-image",
  "image_urls": [
    "https://example.com/reference.png"
  ],
  "prompt": "Recreate the Titanic movie poster with two adorable anthropomorphic cats in the same romantic pose at the bow of the ship. The male cat is an orange tabby wearing a vest, standing behind a white long-haired female cat in a lace dress, holding her paws as they stretch forward in the wind. Both cats are photorealistic with detailed fur, wind-swept hair, and dramatic sunset lighting (warm golden highlights, cool blue shadows). Background: the Titanic ship at dusk with four smokestacks, glowing deck lights, calm ocean, and orange-pink sunset sky. Center title: “CATANIC” in the same gold metallic serif style as Titanic, same size and position."
}

Response

200 — Generation completed. usage contains actual billing details; result URLs are illustrative.

{
  "ok": true,
  "created": 1792134000,
  "data": [
    {
      "url": "https://modelfold.ai/uploads/outputs/result.png"
    }
  ],
  "usage": {}
}