Nastia is an adults-only AI companion web app for NSFW chat, erotic roleplay, group chats, voice messages and AI image and video generation, offered with a free tier and paid monthly or yearly plans.
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Nastia is an adults-only AI companion app that runs in the browser and can be installed as a web app, and the company describes it as built for NSFW chat, dirty talk and adult roleplay rather than for filtered small talk.
The service is run by Nastia Cybernetics, which the privacy policy identifies as a French company acting as the controller of users' personal information.
Alongside explicit roleplay, Nastia AI markets itself as a source of emotional support, mental coaching and a non-judgmental space to talk about feelings, so the same companion is pitched both as a confidant and as a fantasy partner. The product is sexual in scope by design, and its legal terms draw a line around the support role that its marketing does not (see Who is it for).
Nastia is described as running on a large language model trained on dialogues, chats and text, while the model and its provider are not named on the pages checked for this review.
For an uncensored AI companion, the combination is the point: the same character that remembers your storyline can also send a voice note or a picture in the same thread, and several characters can be placed in one scene.
The two routes trade control for convenience. Asking inside a chat keeps the image tied to the conversation, while the standalone generator exposes the prompt, reference and aspect-ratio controls. Face references are the main tool for keeping a character's look consistent, and they only accept images that Nastia generated itself, so the generator is built around fictional characters rather than real people (see Limitations).
Nastia groups its own use areas into emotional support, reflection and mindfulness, roleplay and ERP (erotic roleplay), and writing and creativity.
The membership then stays active until the end of the paid period and does not renew.
Deletion removes companions, conversations, generated images and videos, settings, profile information and any remaining tokens or credits.
Nastia is only for people aged 18 or over, and the privacy policy says accounts believed to belong to minors are closed.
Likely fits
Poor fits
Nastia has a free tier that includes daily messages and basic features without a credit card, while unlimited messages, voice chat, uncensored image generation and premium features sit on paid plans. Nastia also says content is uncensored on every tier, including the free one, so paying changes limits and features rather than content rules.
Published prices, as listed on September 28, 2026, do not agree across the vendor's own pages:
Billing rules that apply to every paid plan:
Nastia positions itself against Replika, which it says removed adult features, and against Character.AI, which it says applies strict content filters. Both points are the vendor's framing of rivals rather than independent findings, but they show the gap Nastia aims at: companion chat with adult content allowed.
The vendor also publishes comparison pages for rival NSFW companions. On one of them, Nastia's own copy describes Candy AI as a $12.99/mo subscription plus token microtransactions; this is Nastia's characterization of a competitor, and Nastia itself also sells token packages.
Outside the vendor's pages, a consumer review profile for Nastia lists JOI, Secrets AI, SpicyChat, CrushOn, Promptchan, Janitor AI and character.ai among the services people also looked at. That list reflects what visitors compared rather than a feature ranking.
Yes, within limits. The free tier includes daily messages and basic features without a credit card, and Nastia says adult content is available on the free tier too. Unlimited messages, voice chat and uncensored image generation require a paid plan.
You must be 18 or older. Most users only confirm their age at sign-up, but users in countries whose laws require it must complete an age check through an independent provider.
Generally no. Purchases are non-refundable unless the law requires otherwise or a technical error prevented delivery. Cancelling stops the next charge, and access continues until the paid period ends.
No. Photo uploads are disabled, face references must come from images Nastia generated, and prompts naming known public figures are refused.
The privacy policy says data is used to improve the Service, including the quality of companion replies, but it does not state whether chats are used for model training. It does say chats are never shown to other users and personal information is not sold.
