Start with the policy line
Cut the list by the adult content policy first, because that line decides whether a tool is usable for you at all. Pornpen.ai, Promptchan and Sudowrite welcome adult output. Pornpen.ai states Adults 18+ only, Promptchan's policy reads Uncensored NSFW generation allowed, and Sudowrite's line reads Adult fiction allowed via Muse model.
Begin from the rankings rather than a brand guess. The NSFW AI image and video generators list and the NSFW AI video generators list gather the adult-facing tools, and each brand's own policy line then tells you which behaviour to expect. A ranking tells you what ranks, a policy line tells you what happens when you ask.
Tools that prohibit it outright
The plainest bans come from Copysmith and Runway. Copysmith prohibits NSFW and sexually explicit content prohibited, and Runway prohibits Prohibited sexual and explicit content. Neither leaves room for a settings change, so treat both as stops rather than as options with limits. For a reader building an adult-facing workflow that distinction matters, because a soft limit can be worked around and a hard stop cannot.
Wording also tells you how wide the ban sits. A rule that names one narrow category leaves more room than a rule that names explicit material in general, and a rule that leans on an Acceptable Use Policy points you at a document worth re-reading before you renew.
Filters and category rules
Filters and category lists are different obstacles. Leonardo.Ai reports NSFW content blocked by filters, which stops a request while it is being made. Stability AI is worded differently, where use is Restricted by Acceptable Use Policy for safe use. Meta AI (Llama API) goes the other way and names categories instead of setting a blanket ban. Its use policy rules out attacks that are sexual in nature, approaches made for the purpose of soliciting sex, and obscene material aimed at young people, and that single clause is the whole of the adult rule.
For an adult audience, a filter can trigger on wording, tone or subject, so a request may fail even when the material sits outside a named category. A category list asks you to stay out of the named groups, which is a rule you can follow by reading. Check which of the two you are dealing with before you plan a workflow around a brand.
Brands outside the category
Several brands here never target the category. Canva Pro is a general design platform with General design platform, no adult generator offering, Kickresume is Career documents service, no adult content offering, and SkillSyncer is Career resume service, no adult content offering. Coinis draws its line on the publisher side instead: Adult websites not allowed as publishers, so the restriction attaches to the site using the service rather than to the output it produces.
If one of these sits on your shortlist, the review page answers the fit question faster than the plan table. Start with the Canva Pro review or the Coinis review, and keep them on the list for non-adult work only.
Output ceilings split the field
The second pass is the maximum resolution. HeyGen reaches 4K, and DeepSwap and Podcastle sit at the same ceiling. Runway adds 4K upscaling on top of that. Tencent Hunyuan lists 2K, and Pornpen.ai lists 2048 x 2048 px, a square format that suits certain crops. Descript lists 1080p and Luma AI lists 1080p. Up to 1024px is the figure for Stability AI DreamStudio, the smallest ceiling in this group.
A ceiling tells you where an output stops, not what it costs to reach that ceiling, and the two often move in opposite directions. Rank by the size you need to deliver, then check what each plan includes at that size.
A comparison order that holds up
Short passes beat a single long list. Start with the adult content policy and keep only the tools that pass it. Then line up the maximum resolution, because a text tool and a video tool are not comparable on the same ceiling. Next, read the plan terms, since a policy line says nothing about renewal windows, refunds, or what happens to work already made. Treat privacy as its own pass: these policy lines govern output, not data retention or training use, so both need their own answer from the vendor.
Ties and the plan you accept
Two details settle most ties. A tool that prohibits adult output is a hard stop, whatever its plan includes. A tool that allows it but caps the ceiling is a softer limit, often handled by a different output size or a setting. Between the permissive group and the restricted group, the deciding factors are the ceiling you need and the terms you accept, not the brand name.