Not the place for NSFW anymore. NovelAI used to be the go-to for anime/hentai image generation on a permissive paid plan. Over the last few model upgrades the filters got stricter and entire subjects that used to work now refuse. The text side still allows adult roleplay on paid plans, but the image side is much more restricted than 2023. I am keeping this entry as a historical reference. For uncensored anime image generation, see Promptchan.
NovelAI is very good if you want text + anime(hentai).
This AI Image Generator is well known for focusing on creating adult anime (hentai) AI images.
There is a free plan for generating texts and adult conversations.
The paid plans allow NSFW AI images to be generated.
Novel AI is a good option for people that want to create more deep AI content beyond just NSFW AI images (since you can also ‘talk’ to them).
Examples
(I’ll post here some images generated with it soon)