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NSFW POLICY GUIDES · BLACK FOREST LABS

FLUX NSFW: open weights vs the BFL API, and the alternative

FLUX is two different things: open-weight models you can run yourself, and the Black Forest Labs API that serves the Pro models. Developers searching "FLUX NSFW" usually mean the first and end up hitting the second.

Written for developers building a product. Policy text read on 21 September 2026. Re-checked quarterly.

What the FLUX policy says

Source: Black Forest Labs Website and FLUX Terms of Service.

“[You may not] use or submit, transmit, display, perform, post or store any content that violates our Usage Policy”
“Content Moderation: We use both algorithmic and human interventions to detect and address content that may violate these Terms, including our Usage Policy.”

What that means if you are building on it

  • The hosted BFL API moderates inputs and outputs, so adult generation through it is refused, and the terms make the Usage Policy binding on API customers.
  • The open FLUX.1 dev weights are released for non-commercial use and FLUX.1 schnell under Apache 2.0; the community has adult fine-tunes for both, but a commercial adult product on dev needs a licence and GPUs either way.
  • So the practical choice is: self-host schnell or a licensed dev on your own hardware, or use an API that is adult-native.

The workarounds, and why they break

  • Prompting around BFL's moderation is against the Usage Policy and unreliable.
  • Running FLUX yourself gives full control and a GPU bill of $1,500 a month upwards per always-on worker.
  • Hosted FLUX on general platforms (fal, Replicate) re-applies moderation.

The API alternative for fictional adult content

SpicyAPI is a REST API built for adult products: uncensored text to image, image editing, image to video, text to video and chat behind one key, pay per generation from a prepaid balance, OpenAI SDK compatible. Every prompt is moderated before billing and every request is steered to depict adults only; real people without consent and minors are blocked, and image inputs must be images your account generated.

For FLUX-style photoreal stills, SpicyAPI's spicy-image-1 ($0.06) and spicy-image-1-pro ($0.09) serve fictional adult content through an OpenAI-compatible endpoint, with no weights to license or GPUs to rent.

curl https://api.spicyapi.com/v1/images/generations \
  -H "Authorization: Bearer $SPICYAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "spicy-image-1", "prompt": "a woman on a beach at golden hour, photorealistic", "size": "832*1216", "n": 1}'

Full reference in the API docs, prices on the pricing page, runnable curl, Python and Node examples in the porn-api repo. See also the porn AI API overview.

Get an API key (18+)See example output

FAQ

Is FLUX uncensored?

The open weights can be run without a filter on your own hardware, subject to the model licence. The Black Forest Labs API applies content moderation and a Usage Policy, so adult generation through it is refused.

Is there a FLUX API for NSFW?

Not from Black Forest Labs. SpicyAPI serves fictional adult image generation over an OpenAI-compatible API with per-image pricing.

Does SpicyAPI allow real people or deepfakes?

No. SpicyAPI generates fictional adults only. Real people without consent, minors in any form and image inputs you did not generate yourself are blocked before billing, the same lines the mainstream platforms draw. What changes is that fictional adult content is allowed instead of refused.

Can I test it without spending money?

Yes. Create a key with Sandbox ticked and every endpoint answers with sample output at no cost, so you can build the whole integration first. Real generations are billed per call from a prepaid balance with a $50 minimum top-up by card or crypto.

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