PSA: ComfyUI won't train on your images, but if you use Cloud your workflow structure is fair game

If you've spent months dialing in your workflows locally, read this before you move anything to Comfy Cloud.

Their terms say flat out they won't train AI on your inputs or outputs. Sounds great. Then the very next sentence reserves the right to collect your "workflow structures, and node configurations" as metadata to improve their products. No training limit on that part, and nothing about anonymizing it.

So here's what it actually means for you: they're not keeping your images or your prompts. They're keeping the thing that took you longest to figure out. The node graph, the sampler combo, the order you chain things in. And on Cloud it's theirs to learn from.

The reason not to totally torch them: if you run Comfy locally, none of this applies. Their new desktop privacy policy (June 3) says your workflows, prompts, outputs and model weights never leave your machine. This is purely a Cloud thing.

Sources: comfy.org terms of service, and the desktop privacy policy inside the app under Settings > About.

Disclosure: I write a newsletter that tracks this stuff weekly: https://ledger.somantix.ai/posts/comfy-ui-continues-differentiating-between-local-and-cloud/