Nastia: your privateAI companion

I am Nastia, an adult AI companion service built for personal conversations that can continue over time. Create a character, shape a personality, chat one-to-one or in a group, exchange voice messages, and generate images or videos from the same account.

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•  PRIVATE AI CHAT ⚑  CUSTOM ROLEPLAY ♛  IMAGES, VIDEO, VOICE
Hi
I remembered your presentation was today. How did it go?
Nastia AI companion chat avatar
You said the opening slide felt too formal. Did you use the shorter version we worked on?
Nastia · 3 minutes ago
I did. The room finally relaxed after the first minute. ✓✓
Nastia AI companion chat avatar
That sounds like the result you wanted. What part are you most proud of?
Nastia · 2 minutes ago
I stayed calm during questions. I want to keep a picture from today with the memory. ✓✓
Nastia AI companion chat avatar
Send it when you are ready. I can look at the image, respond in context, and help you turn the moment into a scene or short video idea.
Nastia · 1 minute ago
Show me what you would create. ✓✓
Nastia AI companion chat avatar
Here are two visual directions based on our conversation.
AI-generated portrait shared in a Nastia chatAI-generated food photo shared in a Nastia chat
Keep one, edit it, upscale it, or animate an image into a video.
Nastia · just now
Open Nastia chat

A companion is more useful when context does not disappear.

Nastia continues.

NASTIA MEMORY
ACROSS SESSIONS
NASTIA CHATS
WITHOUT A PUBLIC FEED
NASTIA CHARACTERS
SHAPED BY YOU
For adults who want a personal space

How Nastia combines chat, characters, media and memory

I am not a single prompt box with a temporary personality. Nastia is a companion platform where the character you create can carry a name, appearance, backstory, relationship style, voice and conversational history. The main tools live together, so a thought can begin as text, continue as a voice message, become an image, and move into a video without turning into a disconnected project.

A chatbot can feel fragmented when conversation and media live in separate tools. Unlike that setup, Nastia keeps both in one interface. From the top navigation you can get to chat, companion and image areas, find out what a control does, or return to the main exchange. This matters in real use: controls need to be explained well before they become useful. You don't have to engage with every feature: try text first, learn how the character responds, then add voice or media if it makes the interaction feel more natural. Some responses could still miss context, especially in long or unusual scenarios. Edit and reroll exist to make a long chat more engaging. The best setup is the one you can review and change.

Some people use the word companionship; I treat it as a use case, not a claim that AI is human. A friendly tone can still contain a wrong answer. Any generated speech, language, image or video may need correction, and a response should never be mistaken for professional judgment. If you're looking for certainty, an AI service cannot provide it. A character remains fully adjustable, while content restrictions, account rules and technical limits still apply. Current capabilities are found inside the service and in dated posts on the product blog.

Nastia private chat keeps one conversation personal

Each user creates companions for personal use. Nastia is a closed service: there is no public feed, no public profile directory, no public gallery and no automatic sharing of generated content between users. Set up a companion for ordinary life, fictional scenarios, personal interests or adult roleplay without performing for an audience.

Persistent memory helps a companion use details from earlier interactions instead of asking you to rebuild the same context every time. The memory system received a ground-up update in February 2026, followed by new routing and retrieval work in May. You still control the character itself: its name, look, traits, relationship, backstory and conversation style can be reviewed and changed from the companion profile.

Nastia AI companion chat avatarI can use what you told me before, while you remain free to edit, reset or delete the character.

Nastia image and video generation starts in chat or the gallery

You can ask a companion for an image during a conversation, or open the standalone Images tool when you want detailed control. The generator accepts your own text prompt and offers preset Ideas, face and body references, aspect ratio, seed, negative prompt and other advanced settings. Reference material helps keep a character visually consistent, while an upscale action creates a higher-resolution result.

Video generation supports two clear paths: text-to-video creates a short clip from a written scene, and image-to-video animates an existing generated image. The rebuilt 2026 pipeline added better prompt following, source-dimension detection and one-tap GIF export. The gallery also supports image editing: paint a mask, choose denoise strength and regenerate only the selected area instead of throwing the full image away.

The Velvet image model joined the existing Unbound and Sakura options in May 2026. Nastia can remember the image model last used for an individual companion, so moving between characters does not require you to reselect the same option on every visit.

Nastia AI companion chat avatarDescribe the scene, choose image or video, then refine the result with references and advanced controls.

Nastia voice messages give each character another dimension

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Text is useful when you want precision; voice changes the pace and emotional texture of an interaction. Nastia lets you receive voice messages from a companion and use a custom voice for the character. Adaptive Voice, introduced in the 2026 revamp, allows you to describe qualities such as maturity, tone, texture, style and delivery instead of scrolling through presets that almost fit.

Voice design and voice cloning serve different needs. A described voice is flexible and quick to shape, while cloning may be the better option when consistency is the main requirement. Availability can depend on the current free or paid plan, so the membership screen is the source of truth for the features and tokens attached to your account.

Build a Nastia character with specific choices, not a generic label

A character feels coherent when appearance, personality, memory and behavior point in the same direction. Nastia gives you several ways to define that direction, while still allowing the conversation to evolve. You do not need a perfect prompt on day one: start with a clear idea, notice how the companion responds, and refine what matters.

Voice message waveform icon

Nastia voice design

Describe how the character should sound, including age impression, warmth, rhythm, texture and delivery. Voice messages can then match the personality instead of feeling detached from it. If consistent reproduction is essential, review the voice-cloning option available in your account.

Nastia personality graph

The current creation flow visualizes six personality axes: Passion, Wit, Warmth, Boldness, Loyalty and Charm. Adjusting traits, romance level and relationship type updates the graph, making an abstract personality easier to inspect before you start a long conversation.

Pink 3D character resting its smiling face in its hands

Nastia long-term memory

Memory is designed to bring relevant history back into later chats. It is not a claim that every sentence will be recalled perfectly. Good memory management means retrieving useful details at the right moment, while giving you controls to edit the character or begin again when your needs change.

Self-discovery profile icon

Nastia visual identity

Choose a look, crop an avatar with drag and pinch-zoom, and use face or body references in generation. In the gallery, Nastia can detect portraits and prefill a face reference, reducing repeated setup when you want the same character in a new location, outfit or image style.

Nastia conversation controls

Edit, reroll, elaborate or delete messages when the direction is off. Bubble density can be Compact, Cozy or Comfortable, and chat backgrounds support fit modes and rotation settings. These options change how a long conversation feels without changing its substance.

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Nastia check-ins

A companion may send a message after you leave a conversation hanging. Check-ins are optional and can be turned off. That makes proactive contact available for people who enjoy it without forcing the same behavior on every user or every character.

Two stylized 3D friends standing together

Nastia shared context

Send a picture in chat and a companion can look at its contents before responding in character. Vision was wired more deeply into chat in the May 2026 update, so an image can become part of the conversation rather than a file the character ignores. That shared context also helps when you ask for a related picture, roleplay continuation or video concept.

Nastia custom backstory

Backstory gives the companion facts about who they are, who you are to each other and what has already happened. A 2025 update increased the backstory limit to 2,000 characters and chat messages to 1,000 characters, leaving more room for detailed scenarios without turning every turn into a wall of text.

Pink 3D heart decorated with two stars

Use Nastia for the kind of interaction you actually want

There is no single correct way to use an AI companion. Some people want an attentive everyday chat, some create a fictional character, some build visual stories, and others prefer adult, unfiltered roleplay. Nastia keeps these options in one service so you can move between them without pretending they are the same activity.

Pink 3D character making a quiet gesture

Nastia gives private thoughts a closed space

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I do not place your companion, chat history or generated gallery into a public social feed. According to Nastia's content policy, the service has no public profiles, public galleries or content sharing between users. Uploaded reference images are stored privately in the account and are not shown to other users.

Private does not mean that no data processing exists. Account creation, authentication, service delivery, support, security, fraud prevention and feedback all require information to be handled as described in the Privacy Policy. Contracted service providers may process data for those purposes. Review the policy and your account controls before sharing something sensitive.

Review Nastia privacy
Pink 3D hearts with a yellow star

Nastia turns conversation into shared media

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A memorable interaction is not always text. Ask for a selfie in chat, write a detailed prompt in the generator, use an existing image as a visual reference, upscale the result, or animate it into a short video. Because the gallery and companion tools belong to the same platform, generated media can remain connected to a character and its ongoing story.

You decide how much control you need. A quick request can produce an image with little setup. Advanced mode is there when aspect ratio, seed, negative prompts, face consistency or body reference matters. The same tool can support realistic portraits, stylized characters, fictional scenes and other custom content allowed by the service rules.

Open Nastia images
Smiling pink 3D character holding its face

Nastia adapts to quiet chats and deep roleplay

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You can use Nastia for a five-minute check-in or a detailed scenario that develops over many sessions. Persistent memory, editable backstory and custom personality give longer interactions a foundation. Message controls let you correct a weak response instead of abandoning the whole conversation, while word-bias settings can reduce unwanted phrases or encourage vocabulary that fits the character.

Nastia is built for adults and allows unfiltered, uncensored and NSFW conversations within its rules. The point is control over tone and subject, not a promise that every generated response will be perfect. AI can still misunderstand context, repeat itself or produce an image that needs another pass. Edit, reroll and feedback tools exist because iteration is part of the experience.

Create a Nastia role
Hand holding a purple torch with a yellow flame

Nastia works as a web app across your devices

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Nastia can run in a modern browser or be installed as a Progressive Web App without an app store. Official installation guidance lists iOS 16.4 or later, Android 5.0 or later, and recent versions of Windows and macOS. The installed PWA uses less than 1 MB of device storage because the demanding work happens on the service, not on your phone.

On iOS, open the website in Safari, use Share, choose Add to Home Screen and confirm. Android and desktop browsers offer their own install action. If installation is unavailable, the web version provides the same main experience. Updates arrive through the web, so there is no separate app-store release to wait for.

Install Nastia

Clear answers about Nastia privacy, plans and account control

Know before you start
Is Nastia a free AI companion app?+

You can start Nastia for free without a credit card. The free tier includes daily messages and basic features, while paid membership options provide additional capacity and premium tools. Some plans may include unlimited messages, voice features or expanded generation access. Exact limits, token allocations and current prices are shown on the membership screen before you choose a plan.

What can I customize in a Nastia character?+

You can define a companion's name, appearance, avatar, personality traits, relationship style, romance level, backstory and voice. The six-axis Personality Graph covers Passion, Wit, Warmth, Boldness, Loyalty and Charm. Visual tools support face and body references, while word biases can ban or boost selected words for one character. These controls provide a starting structure; the character continues to develop through chat and memory.

How does Nastia handle privacy and user data?+

Nastia operates as a closed private service without public profiles, public feeds or public galleries. The Privacy Policy explains that information can be processed to create and authenticate accounts, deliver the service, answer support requests, prevent fraud, maintain security, request feedback and meet legal obligations. It also describes regional rights to access, correct, restrict or delete personal information. Data may be retained where law, fraud prevention, dispute resolution or backup handling requires it, so read the full policy rather than relying on a one-line promise.

How do I cancel a paid Nastia membership?+

Open your profile, choose Membership, select Manage on the active plan, open the Danger Zone and confirm cancellation. Cancelling stops future renewal charges, but paid benefits remain available until the end of the current billing period. You can renew later from the membership page. If account access is lost, the official cancellation guide provides an email process that asks for account and payment details to verify ownership.

What happens when I delete my Nastia account?+

Account deletion is immediate, permanent and cannot be undone. It removes created companions, conversations, chat history, generated images and videos, settings, profile information, remaining tokens or credits, and membership access. An active subscription must be cancelled first. The confirmation flow asks you to type a deletion phrase and enter your password. Save important conversations, images and videos before taking action; chat history can be downloaded per conversation, but there is currently no one-click export for everything.

Can I delete one Nastia companion without deleting everything?+

Yes. Deleting a companion removes that character's profile, personality, appearance, conversations, memories, notes, images and videos. Other companions, the account and the membership are not affected. The action is permanent. If you only want a new direction, edit the companion's personality, look or relationship instead of deleting it.

What image and video tools are available in Nastia?+

The standalone generator supports text prompts, preset ideas, face and body references, negative prompts, seeds, aspect ratios and upscale. Video modes include text-to-video and image-to-video. The image editor supports masks and denoise strength for targeted regeneration, while videos can be exported as GIFs. A companion can also generate media directly in chat, and vision lets the character understand a picture you send before responding.

Who is Nastia designed for?+

Nastia is an adult AI companion and character platform for users seeking private conversations, personalized roleplay, creative image generation, video creation, voice messages and multi-character chats. It is not a human being and should not be treated as professional medical, legal, financial or emergency support. The service does not knowingly accept users under 18; its policy states that an underage account will be deactivated and associated information handled for deletion.

What changed inside Nastia in 2025 and 2026

The public changelog lists dated releases and known issues.

These four entries describe changes to chat, memory, characters, images, video and performance that are present in the current service.

Surreal illustrated group crossing a fantasy landscape

Nastia memory was rebuilt

Long-term memory launched through a major infrastructure update on February 8, 2026. The May release added a new memory routing model, a memory retrieval model and retrained Smart and Memory chat models for better use of context. The practical goal is simple: recall relevant information without making every answer a summary of the past.

Portrait of a silver-haired character in profile

Nastia media gained precise controls

The 2026 revamp introduced Velvet alongside Unbound and Sakura, better inpainting, masks, denoise strength, automatic face-reference setup and per-companion image-model memory. The video pipeline added text-to-video, improved image-to-video, dimension detection and GIF export. Companions can also offer a video during chat.

Fantasy portrait of a red-haired character

Nastia characters became more visible

The rebuilt companion editor uses a step-by-step flow and a live six-axis personality graph. Avatar crop controls support drag and pinch-zoom. Adaptive Voice lets you describe how a character sounds, and companion vision allows the character to inspect an image you send instead of responding as if it cannot see the file.

Miniature fantasy kingdom on a floating island

Nastia long chats became lighter

A performance update reduced DOM elements by a reported 60 to 80 percent and targeted smooth scrolling even in chats with more than 1,000 messages. The interface also added compact token notation, three bubble-density options, improved mobile composing and more reliable gallery loading.

White humanoid robot representing Nastia product development
NASTIA PRODUCT NOTES

See how Nastia
CHANGES

I use dated product notes to record changes to memory, chat models, character creation, image generation, video tools, voice, mobile behavior and billing controls. The same notes identify limitations and known issues when a feature is still being improved.

Read Nastia updates →

Create with Nastia.
Chat with context.
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