What FLUX adds to your images
FLUX models run in many places: ComfyUI and other local apps, and hosted services. The metadata in the file comes from the app, not the model.
Markers and metadata
| Marker | What it is |
|---|---|
| ComfyUI workflow | Local ComfyUI saves the prompt and workflow in PNG text chunks. |
| Service metadata | Hosted apps may add their own metadata or Content Credentials, or none at all. |
Because it varies so much, checking the actual file is the only reliable way to know.
Check a FLUX file
Drop the file into the AI metadata checker to see its Content Credentials, IPTC tags, prompts and any private details. It runs in your browser, so nothing is uploaded.
How platforms use these markers
FLUX metadata FAQ
How can I check a FLUX image?
Run the file through the AI metadata checker to see exactly which labels and private details it carries.