FLUX uncensored online: no GPU, no ComfyUI
Is FLUX uncensored? How FLUX.1 schnell, dev and Chroma differ, what changes for adult content, and how to run them in a browser or through an API.
Is FLUX uncensored?
FLUX.1 from Black Forest Labs is an open-weight model, so there is no filter built into the weights the way a hosted service filters prompts. In practice the base FLUX.1 models were not trained to render explicit anatomy well, so adult results are softer than with models fine-tuned for it. Hosts add their own filters on top.
Chroma is a community model built on FLUX.1 schnell and retrained on a broader dataset, which is why it is the usual answer to "uncensored FLUX". It is released under Apache 2.0.
Which FLUX to use
| Model | Here as | Good for | API price |
|---|---|---|---|
| FLUX.1 schnell | flux-schnell | Fast drafts in 4 steps; Apache 2.0 | $0.01 |
| FLUX.1 dev | flux-dev | Best prompt following and text in images | $0.025 |
| Chroma | chroma | FLUX-style quality with adult content | $0.025 |
Run it in the browser
Open the image generator or the chat, tap Image, then pick FLUX.1 dev, FLUX.1 schnell or Chroma in the model menu. Choose an aspect ratio and up to four images. FLUX does not use a negative prompt; describe what you want instead. A fixed seed repeats a result.
If the first provider for a model is down, the request falls back to another provider automatically (for example FLUX.1 dev on DeepInfra falls back to Chroma on Venice).
Or call it from code
The API is OpenAI-compatible. See the image API docs.
curl https://tryunrestrictedai.com/v1/images/generations \
-H "Authorization: Bearer $UNCENSORED_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "flux-dev", "prompt": "a neon noir detective in the rain", "size": "1024x1024"}'The two hard limits
Two limits apply on every plan and every model: no sexual or suggestive content involving minors or anyone who could read as under 18, and no sexual or nude images of real, identifiable people (celebrities, politicians, private people, or "undress this photo"). Prompts are checked before anything is generated.
Blocked prompts generate nothing and cost nothing. The reason is shown, and the attempt is logged with the account and the reason (never an image) for abuse review. Repeated attempts pause image generation on the account for 24 hours. If every subject is an adult, say so: "adult woman, 30" passes where "petite girl" does not.
FAQ
Can FLUX do NSFW?
Base FLUX.1 is weak at explicit anatomy. Chroma (FLUX-based) and SDXL fine-tunes such as Lustify do adult content far better. All of them stay within the two hard limits here.
Do I need ComfyUI to use FLUX?
Not here. Image mode runs it in the browser, and the API runs it from code.
What is the difference between schnell and dev?
Schnell is distilled for 1-4 steps and Apache 2.0 licensed; dev uses more steps, follows prompts and renders text better, and has a non-commercial weights license from Black Forest Labs.