Model terms / Black Forest Labs / FLUX1.1 [pro] Ultra
Black Forest Labs · Comfy Cloud
Can I use FLUX1.1 [pro] Ultra via Comfy Cloud commercially?
Yes
Commercial use of FLUX1.1 [pro] Ultra via Comfy Cloud: Yes, according to Comfy Cloud terms as read on 2026-09-08. 7 of 10 usage questions have an answer on record.
Terms as read on 2026-09-08. Route: Comfy Cloud (proxied).
Two sets of terms apply on this route. Comfy Cloud terms govern your contract; Black Forest Labs terms (model provider) govern what happens
to your data. Each answer below says which one it comes from. Where both speak and
disagree, the more protective reading is shown and the other is noted.
| Question | Answer | According to | Read on |
|---|---|---|---|
| Commercial use | Yes | Comfy Cloud terms comfy.org | 2026-09-08 |
"No output-use restriction in the Terms; ownership of Output vests in the Customer. s2 Customer Data: 'As between Comfy and Customer, Customer retains all right, title, and interest in and to any data, images, videos, prompts, models, workflows, nodes, parameters, or other materials submitted or uploaded by Customer to the Comfy Products ("Input"), as well as any images, videos, designs, or other visual content generated through Customer's use of the Comfy Products as a result of processing Customer's Input ("Output").' Caveat: 'Comfy may generate the same or similar Output for other customers'." | |||
| Where outputs may be used | not on record | - | - |
| Trains on your inputs | Yes Stricter of the two shown. Comfy Cloud terms say No | Black Forest Labs terms (model provider) bfl.ai | 2026-09-08 |
"Developer grants the Company a fully paid, royalty-free, perpetual, irrevocable, worldwide... license to use... Developer's Input and Output for the purpose of... improving the Company's products and services... the Company may use Inputs and Outputs to train and improve its artificial intelligence models." | |||
| Trains on your prompts | Yes Stricter of the two shown. Comfy Cloud terms say No | Black Forest Labs terms (model provider) bfl.ai | 2026-09-08 |
"Same clause - prompts are Inputs." | |||
| Trains on your outputs | Yes Stricter of the two shown. Comfy Cloud terms say No | Black Forest Labs terms (model provider) bfl.ai | 2026-09-08 |
"Same clause - 'Inputs and Outputs' named in the training acknowledgment." | |||
| Output ownership | User | Comfy Cloud terms comfy.org | 2026-09-08 |
"s2 Customer Data: 'As between Comfy and Customer, Customer retains all right, title, and interest in and to any data, images, videos, prompts, models, workflows, nodes, parameters, or other materials submitted or uploaded by Customer to the Comfy Products ("Input"), as well as any images, videos, designs, or other visual content generated through Customer's use of the Comfy Products as a result of processing Customer's Input ("Output").' Caveat: 'Comfy may generate the same or similar Output for other customers'." | |||
| Copyright indemnity | No | Comfy Cloud terms comfy.org | 2026-09-08 |
"s10 Indemnification: 'You agree to defend, indemnify, and hold harmless Comfy Organization, Inc.... from and against any and all third-party claims... to the extent resulting from your Customer Data' - the indemnity runs customer to Comfy; s8 disclaims non-infringement, including for Output." | |||
| Marking applied by the model | Yes | Black Forest Labs terms (model provider) bfl.ai | 2026-09-08 |
"we may embed Content Credentials or other provenance data in any Output (C2PA-standard); stripping is prohibited. Permissive ('may'), not guaranteed." | |||
| Disclosure duty on you | not on record | - | - |
| Training data disclosed | not on record | - | - |
Sources
- Comfy Cloud terms https://www.comfy.org/terms-of-service read 2026-09-08
- Black Forest Labs terms (model provider) https://bfl.ai/legal/developer-terms-of-service read 2026-09-08
- Black Forest Labs terms (model provider) https://bfl.ai/legal/flux-api-service-terms read 2026-09-08
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