How to read the table
- Allowed in writing — a public policy states adult content is permitted and names the red lines.
- Documented switch / de facto — NSFW output is available (a documented flag, a "spicy" SKU, marketing copy) but no policy commits to it; it can be withdrawn without notice.
- Not guaranteed — depends on individual models or routing; can vanish per model.
- Prohibited — terms forbid sexually explicit generation.
The table
| Platform | NSFW status | What the terms / docs say | Source | Last known change |
|---|---|---|---|---|
| 18models | Allowed in writing | Fictional adult content permitted under a published content policy; minors (any style) and real people prohibited absolutely, screened on input and output. Effective 2026-08-19. | Content Policy | 2026-08-19 |
| PiAPI | Allowed in writing | Dedicated NSFW policy page: 18+ content allowed, zero tolerance for CSAM / NCII / deepfakes. Wan backend generation may be routed to official endpoints where the policy would not apply. | PiAPI NSFW Policy | — |
| Venice AI | Allowed in writing | "Private, uncensored" positioning; legal adult content allowed; video API offers Enhanced / Private variants; subscription + crypto payments. Video pricing is dynamic. | Venice docs | — |
| WaveSpeed AI | Documented switch / de facto | "Spicy" image-to-video SKUs for Wan 2.2 / 2.6 / 2.7, Seedance 2.0 / 2.5 and Vidu Q3 (Wan 2.7 i2v Spicy from $0.26/run) supply NSFW output in practice; Terms prohibit non-consensual nudity / illegal pornography and state WaveSpeed "does not condone or encourage" pornographic output and does not monitor content — no written allowance. | WaveSpeed Spicy collection · Terms | 2026-05-01 (Wan 2.6 Spicy) |
| Eachlabs | Documented switch / de facto | Documents enable_safety_checker: false for Wan 2.6 T2V/I2V and Seedream 4.5. | Eachlabs NSFW docs | — |
| ModelsLab | Documented switch / de facto | Marketed as "SFW and NSFW with full control"; terms publish no explicit CSAM / real-person clauses (as verified); Stripe billing. | ModelsLab | — |
| Segmind | Documented switch / de facto | Markets Seedance 2.5 as uncensored (blog 2026-08-12) at $10.97/M tokens; model-level checks remain per its own materials. | Segmind Seedance 2.5 | 2026-08-12 |
| CivitAI | Not guaranteed | April 2026 split: civitai.com all-SFW (cards), civitai.red all-NSFW (crypto only); real-person content banned site-wide; generation API routes via fal.ai with safety checks on by default. | CivitAI split announcement | 2026-04 |
| Replicate | Not guaranteed | Terms prohibit non-consensual and illegal sexual content and reserve the right to remove any model; adult output depends on individual community models and can disappear. | Replicate Terms | — |
| Novita | Prohibited | AUP effective 2026-08-05, section 5 Content Standards item (7): content that "Is sexually explicit" is prohibited — a reversal for a platform previously treated as permissive. | Novita AUP | 2026-08-05 |
| fal.ai | Prohibited | Acceptable Use Policy prohibits sexually explicit content; Trust & Safety describes moderation applied across traffic. | fal.ai AUP | — |
| Alibaba Model Studio (official Wan API) | Prohibited | "Input and output undergo content moderation" (Green Net) with no opt-out — the official channel for Wan does not serve adult content. | Model Studio Wan API reference | — |
| Runware · getimg.ai · RunDiffusion · SiliconFlow · Pixazo | Prohibited | Terms of Service prohibit sexually explicit generation. | Runware Terms (others: see each ToS) | — |
Third-party rows verified 2026-08-19 against the linked source. This page is maintained by 18models; we hold ourselves to the same standard — our row links to the same policy our customers are bound by. Spot an error or a change? Tell us and it is corrected within 24 hours.
Recent changes
- 2026-08-05 — Novita adds "Is sexually explicit" to prohibited Content Standards (AUP §5(7)). Developers running adult workloads there are now outside the terms — see the migration guide.
- 2026-08-12 — Segmind publishes its Seedance 2.5 "uncensored" positioning ($10.97/M tokens); 18models serves the same model at $10.70/M.
- 2026-05-01 — WaveSpeed announces Wan 2.6 "Spicy"; by August 2026 the Spicy collection also lists Wan 2.7 and Seedance 2.5 image-to-video variants — de facto supply, still no written allowance (comparison).
- 2026-04 — CivitAI splits into civitai.com (SFW, cards) and civitai.red (NSFW, crypto only) after card-network pressure; real-person content banned site-wide.
- 2026-04 — Google Play tightens distribution of adult AI apps, pushing adult products toward web + API.
Why we publish this
Every entry above is a supplier decision that shipped a product to a competitor or killed one. 18models exists on the "allowed in writing" row on purpose: fictional adult content permitted, minors and real people banned absolutely, screening on both sides, changes announced 7 days ahead. Read the full text at /content-policy, and compare providers side by side: fal.ai · Replicate · Novita · WaveSpeed · CivitAI · ModelsLab · Segmind.
FAQ
Which AI video generation APIs allow NSFW content in 2026?
In writing: 18models (published content policy), PiAPI (NSFW policy page), Venice (legal adult content). De facto / documented switches: WaveSpeed 'Spicy' SKUs, Eachlabs enable_safety_checker=false, ModelsLab marketing, Segmind for Seedance 2.5. Prohibited: fal.ai, Replicate (no allowance), Novita (since 2026-08-05), official Alibaba Model Studio, Runware, getimg.ai, RunDiffusion, SiliconFlow.
Does fal.ai allow NSFW?
No. fal.ai's Acceptable Use Policy prohibits sexually explicit content and traffic is moderated (verified 2026-08-19).
What changed in Novita's content policy in August 2026?
Novita's Acceptable Use Policy effective August 5, 2026 added 'Is sexually explicit' to its prohibited Content Standards (section 5, item 7). Sexually explicit generation on Novita is a terms violation from that date.
How often is this tracker updated?
Monthly, and within 24 hours when a reader reports a change we missed. Every row carries the date it was last verified and links to the primary source.