Higgsfield is an image and video generation platform with its own SOUL image models and hosted models from other providers, such as Kling, Seedance, Wan, and MiniMax.
With the Higgsfield block, you can:
- Generate media with any model: Send a model endpoint ID and that model's documented JSON input, then get back image, video, or audio URLs.
- Generate SOUL images: Set aspect ratio, resolution, style, and a trained character without writing JSON.
- Train characters: Create, check, list, and delete Soul ID characters from reference photo URLs to keep a person or mascot consistent across images.
- Manage requests: Check the status of a request, cancel one that is still queued, or delete a finished request's data.
Create an API key in the Higgsfield Console, then connect it as a saved Higgsfield account in Sim. Paste the key ID and secret joined by a colon: KEY_ID:KEY_SECRET.
Generation runs in the background. By default the block waits for the result. Turn off Wait for Result to return the request ID right away, then use Get Request Status later. Output URLs expire after seven days by default, so copy media you need to keep. Which models you can use depends on your Higgsfield account; find endpoint IDs and their input fields in the model catalog.
In Sim, the Higgsfield block lets your agents produce product videos, ad creatives, and on-brand character images from a brief or a table of products.
Use the block
Generate images and videos with any Higgsfield model, create SOUL images with styles and trained characters, train and manage Soul ID characters, and check, cancel, or delete generation requests.
Actions
Higgsfield Generate
Submit a generation request to any Higgsfield image or video model endpoint with that model's documented JSON input, then wait for the output URLs.
Higgsfield Generate SOUL Image
Generate images with Higgsfield SOUL, optionally in a style or as a trained Soul ID character, then wait for the image URLs.
Higgsfield Get Request Status
Get the status of a Higgsfield generation request and, once completed, its output URLs.
Higgsfield Cancel Request
Cancel a Higgsfield generation request that is still queued. Requests that have started processing cannot be canceled.
Higgsfield Delete Request
Immediately delete a finished Higgsfield request's output files, prompt, and parameters.
Higgsfield Create Character
Train a reusable Soul ID character from public reference image URLs. Training runs in the background; use Get Character to check when it completes.
Higgsfield Get Character
Get a Soul ID character reference, including its training status.
Higgsfield List Characters
List the Soul ID character references in the Higgsfield account, one page at a time.
Higgsfield Delete Character
Permanently delete a Soul ID character reference.