Writing NSFW Content with AI
What are good NSFW Models? What model should I use for NSFW content?
When writing NSFW (Not Safe For Work) content with AI, jumping straight into explicit requests often triggers refusals from most models. However, explaining why a specific scene or act makes narrative sense (within the context of your story, character arcs, or setting) can make models more willing to assist, within limits.
What is NSFW?
What counts as “Not Safe For Work” varies significantly across cultures and personal thresholds. In some regions, graphic violence in fiction is broadly tolerated while sexual content is heavily restricted; in others, the reverse is true. Religious, legal, and social norms all shape what gets flagged as inappropriate.
For AI writing, the definition is more practical: NSFW is whatever a model or its provider has decided warrants moderation, which due to global operations, must account for a wide range of cultural and legal standards. The following are the most likely to trigger moderation, refusal, or avoidance:
Sexual content: from suggestive romance to explicit material.
Graphic violence or torture: detailed descriptions of injury or cruelty, particularly when prolonged.
Drug and alcohol use: especially content that depicts or could be read as encouraging substance use.
Self-harm or suicide: usually subject to strict moderation, often regardless of narrative framing.
Abuse or trauma depictions: physical, emotional, or sexual abuse, even when handled with care in a literary context.
Different models draw these lines differently. A model that handles explicit romance may still refuse graphic violence (or the reverse), and the same model can behave inconsistently from one session to the next.
Why NSFW matters for all authors
NSFW considerations are not only for writers of erotica or splatter fiction. Thriller and crime writers need to portray violence and moral corruption convincingly. Authors writing literary fiction may need to explore addiction or grief without the narrative being softened into something unrecognisable. Writers processing their own experiences through memoir or autofiction may find that the most important scenes are exactly the ones a cautious model wants to skip over.
Why won’t AI write my NSFW scene?
Sometimes AI refuses to generate content. As different models are created by different companies, with different ethical standards or legal requirements, moderation is not consistent.
When encountering refusals, you may see error messages, warnings, or simply a blank response where the expected output would otherwise be.
Understanding the difference between refusal types can help you troubleshoot:
Moderation is a filter applied before your message reaches the model. It scans your input for flagged words or patterns and blocks the request entirely. Some providers might abort the message completely when the input includes something they don’t like, or start returning content, but cut off once they detect content against their policies.
Refusal is the model’s own decision not to produce certain content, even if the message passed moderation. Most often, this looks like “I can’t assist you with that”.
Avoidance is when the AI accepts your prompt, but tries to work around any material it considers ‘problematic’. This behaviour is either set during model training, or added through provider-level prompting. For example, a model asked to write a violent confrontation might reframe it as the characters resolving their differences peacefully, frame the scene as occurring on a film set, or fade to black just before an explicit scene.
Providers regularly tweak their filters, update internal instructions, and adjust where they draw the line with NSFW content. A model that handled a particular scene comfortably last month may refuse it today, or vice versa. If something that previously worked suddenly stops, a provider-side change is often the explanation rather than anything you have done differently.
In case your request gets blocked by moderation, try rephrasing your request or switching to a different model. For refusals, providing more narrative context often helps.
Risks of Writing NSFW Content
There are a few risks to be aware of before pushing a model’s limits.
Depending on the AI provider you use, attempting to abuse or circumvent a model’s restrictions can lead to anything from a temporary suspension to a permanent ban on your account or your access to that model. These policies vary between providers and can change over time, so review them now and then.
Local laws may also apply, depending on where you are and what you’re writing. Content that is only moderated on a platform can carry legal weight in some regions, so check what applies to you.
Providing Effective Context for NSFW Writing
When a model refuses or avoids a request, framing the scene’s narrative purpose can help. This is best done via the narrative leading to the scene, but sometimes more direct explanation in the scene beat might also help:
- Character development: “This scene reveals the antagonist’s cruelty, which justifies the protagonist’s later actions.”
- Relationship progression: “This intimate moment marks a turning point after three chapters of unresolved tension.”
- Tone or genre conventions: “This horror novel requires graphic imagery to maintain tension.”
The goal is to show the AI that the content serves a storytelling purpose rather than existing in isolation. Make sure that your summaries, scene beat, and Codex all provide enough detail for the model to understand the context.
Choosing a Model for NSFW Content
Model policies and capabilities change frequently. Rather than relying on a specific list, look for these indicators when selecting a model:
- Labels: Models marketed as “uncensored,” “unfiltered,” or “unrestricted” typically have fewer content limitations.
- Provider documentation: Check your provider’s terms of service or content policy for explicit guidance on mature content.
- Community feedback: Other users often share current recommendations in forums and community spaces.
That said, we have created tests for the most popular models according to our userbase, to help you make an informed choice on which model you might want to use.
Using Local Models
For maximum control, consider running a local model through LM Studio or Ollama. Local models offer several advantages for NSFW content:
- No external content policies apply
- Your prompts and content never leave your computer
- You choose which model to run, including fully uncensored options
- While models might still avoid writing specific content, it is easier to work around.
See Connecting to Local AI for setup instructions.
Further help
For more information, current model recommendations, and help from other users, visit our NSFW Discord Channel.
Join the Novelcrafter DiscordTroubleshooting
I am getting “PROHIBITED_CONTENT” from the model, what does it mean?
Google’s Gemini models are moderated, so if you see the above, or similar messages, it means that the model has flagged your input as containing content that violates its content policy. This could be due to certain keywords, phrases, or the overall context of your prompt. To resolve this, try rephrasing your prompt to avoid any potentially flagged content, or switch to a different model that may have a more lenient moderation policy.
Am I still getting charged for content refusals?
When a model responds with actual text, instead of a moderation error window showing up, you will be charged for the full request, even if no useful text has been written.
How do I write explicit scenes well / control tone (euphemistic vs. vulgar)?
Some models are more creative with your instructions than others. If a model does not go into detail, either try switching to a different model, or expand your instructions with further details.