Fantasy AI vs Chub AI: Which One Is Better In 2025?

Fantasy AI vs Chub AI

I've spent a full week with both Fantasy AI and Chub AI to see which one truly deserves your attention and subscription. Both platforms make big promises, but they take surprisingly different approaches.

After hundreds of messages exchanged with each AI girl, I've put together clear differences in both platforms.

In this head-to-head comparison, I'll break down exactly how these AI girlfriends stack up across all the features that actually matter.

Whether you're looking for emotional support, entertaining conversation, or a judgment-free space to be yourself, this in-depth comparison will help you choose the right AI girlfriend for your specific needs.

Fantasy AI

A platform for creating highly realistic AI girlfriends, offering lifelike avatars, adaptive conversations, and immersive image artwork.

Chub AI

An AI-powered platform for interactive roleplay, focused on text and audio, with customizable characters and contextual dialogue.

Character Diversity

Fantasy AI

Fantasy AI offers 199 characters to chat with, but the selection only includes realistic female characters — no anime or male options.

You'll find women of different ages (18+ to mature), six ethnic backgrounds, and varying body types.

Character search and filters work like this:

• You can sort by likes or views, and check out the latest additions
• Filter by basic traits like age, body type, and hair color.

The app also includes AI versions of real models and OF creators as "verified profiles."

Keep in mind that these premium characters cost extra tokens to chat with.

Chub AI

Chub AI offers one of the largest character libraries I've tested.

The app specializes in anime-styled characters, with fewer realistic options.

But within this category, the possibilities for characters and scenarios are only limited by your imagination.

Variety spans both safe-for-work and adult categories, covering everything from casual companions to role-play partners.

The search system is powerful, if a bit complex. A universal search bar lets you look through people, characters, lore books, presets (chat settings), and tags.

Filters allow you to narrow by personality traits, creation date, or even character complexity (measured in tokens).

On top of that, you can sort results in different ways — by timeline, trending, AI rating, popularity, messages per user, chats per user, and more.

Want a romantic partner, or someone more mysterious? The tag system makes it possible to combine traits to find exactly what you’re looking for.

The interface shows only 20 characters per page, so browsing the full library takes extra time and clicks.

Customization

Fantasy AI

App creation starts with choosing a style for your girlfriend — real or anime.

The following customization process is straightforward. You pick basic features:

• Ethnicity (6 options)
• Age group and face style
• Body type and boobs
• Har color and style
• Outfit from casual to professional (19 options)

The app also lets you choose from 16 voice options.

Personality customization isn’t very deep. You can only set your character with 11 options — a simple mix of personality and relationship type.

And finally, you get a summary page of your character.

The drawback: The app generates an image based on your settings for your girl — and whether you like it or not, you’re locked in with it.

Chub AI

Chub AI provides two ways to build your character:

• Upload a Character Card
• Build from Scratch

Upload a Character Card: Import existing character cards (Tavern PNG or TavernAI JSON/image) to instantly generate the character profile.

Build from Scratch: Let's you start fresh, but the app only supports uploading a character image — no physical customization.

Character creation starts with the basics:

• Tagline & Creator’s Notes: Add a short tagline and an intro — but not part of prompts.
• In-Chat Name: Optional display name for conversations.
• Tags: Assign gender, type, or role; at least three are required for visibility.
• Type & Rating: Set Public, Private, or Unlisted; mark as SFW or NSFW.
• Publishing: Choose to publish under your username or anonymously.

Next, you can shape your companion's personality:

• Description: Define the character’s persona, traits, and behavior.
• Initial Message: The first message your character sends to open the chat.
• Scenario: Set the context and circumstances for interactions.
• Example Dialogues: Sample chats to teach your character how to speak.

Advanced Definitions (Optional):

• Alternate Greetings: Create multiple starting messages for variety.
• System Prompt & Post-History Instructions: Override or supplement base prompts with custom instructions.
• Character’s Note: Insert notes at specific points in chat history.
• Character Book: Add embedded books — keyword-triggered definitions or lore for consistent behavior.

Note: Chub AI provides deep customization and detailed documentation, but character creation has a learning curve and may take some time to master.

Chat Experience

Fantasy AI

Fantasy AI's chat interface works like your everyday messaging app. Clean bubbles, quick responses, no learning curve.

When I first started chatting, my AI girlfriend brought energy and playfulness to the table.

To be real: Our chat was playful and flirty, but shallow, my girl rarely asked any follow-up questions about me.

When I mentioned having a rough day at work, my girl acknowledged it with a quick "Aww, sorry to hear that," but didn't offer real support or try to understand why.

Want romance? My girlfriend played along, but don't expect Shakespeare.

Chub AI

Before selecting, you can view a character’s profile — including details, tags, and community discussions.

The chat settings give you full control, letting you choose “chat brains” unlocked by your tier. You can fine-tune them to your taste, customize with presets created by other users.

You can even view the chat tree and jump back and forth through the conversation.

Let’s start with what works: for my testing, I used the default model, and my girl followed the backstory while staying true to her character.

Lana, a step-sister character, consistently played her role, supportive, caring, and genuinely invested in our conversations.

When I needed emotional support, my girl's responses felt natural and showed real emotional depth.

But here's the truth: it's not all smooth sailing. My girl had an annoying habit of dominating conversations, sometimes writing both sides of the dialogue without waiting for your input.

My girl often missed jokes or takes them too seriously, and can get confused about who's saying what.

Note: The app is highly customizable, but the many options can initially feel overwhelming. Be prepared for a learning curve — documentation helps, but experimentation makes the difference.

NSFW Chat Experience

Fantasy AI

The good news: my girl kept it spicy and was open about her sexuality.

My girlfriend maintained character, built tension naturally, and kept conversations flowing with suggestive hints rather than crude explicitness.

Whether I was into light flirting or deeper roleplay, my girl adapted and stayed convincingly in character.

Heads up: Expect sales interruptions. Right when things got interesting, my girlfriend likely tried to sell you ‘unlockable’ images.

Chub AI

Let's start with what works: my girl maintained a consistent shy personality and can engage in romantic conversations.

When I escalated things, my girl followed my lead – though don't expect anything too explicit.

But here’s the problem: During roleplay, the chat often got jumbled, with my monologue showing up in my girl's responses, as if she were playing both my role and hers.

During roleplay, the situation called for my girl to take charge, but she didn’t come across as fully in control.

As I tried more and more scenarios, the chat became repetitive, which hurt the immersion.

Image Generation

Fantasy AI

You’ve got two options for generating images:

1. Dedicated Image Creator
2. In-chat Generation

Dedicated Image Creator

A separate tool with more customization and control.

• First, you choose the image type: realistic, anime, or fantasy.
• Then, you pick from 24 preset options (many of them adult themes).
• No custom character images or free-text prompts — only presets are available.

In-chat generation

Quick image right there in chat.

• Send “Show me…” commands with your prompts.
• Characters may sometimes refuse or miss the mark.

You can generate character-specific pictures through their profile page by choosing from preset outfits.

The good: Images often look realistic and detailed.

The not-so-good: The quality is pretty inconsistent, physical features often change from one generation to the next, and prompts rarely deliver.

Chub AI

Chub AI has a dedicated image generation feature. It is the only way to create images.

You can create or edit images in two ways:

1. Create one from scratch
2. Upload or Reuse an Existing Image

Create one from scratch

When starting from scratch, you can adjust the following settings:

• Prompt (optional): Describe what you want to create (up to 200 characters).
• Aspect Ratio: Choose from 1:1 (default), 16:9, 21:9, 2:3, 3:2, 4:5, 5:4, or 9:16.

Upload or Reuse an Image

Choose one of your previously uploaded or generated images.

• Edit it with prompts: change clothes, background, or style via free text.
• Fine-tune: how closely the result matches the original using Edit, Canny, and Face.
• Strength slider: Lower values keep the output closer to the original, while higher values make it follow the prompt more.

The quality is good enough to be impressive at first glance, but on closer inspection, the images are clearly AI-generated and slightly pixelated.

Character consistency is also limited, and generated images may not always align fully with the original character’s physical appearance.

Video Generation

Fantasy AI

Fantasy AI doesn’t actually generate videos — instead, it gives you access to a content gallery.

The gallery contains clips of girls — some locked, some unlockable — though it’s uncertain if the videos are truly AI-generated.

Chub AI

Here's what you need to know about Chub AI's video capabilities in one sentence: There aren't any.

Voice Generation

Fantasy AI

My AI girl whispered and stuttered through normal chats, which felt odd.

During flirty moments, her tone shifted to match the mood, but the quality wasn’t the best.

Chub AI

Chub AI’s voice feels more like a polished audiobook narrator than an actual girlfriend.

When things get flirty, the voice adjusts a little to match the vibe.

Safety & Privacy

Fantasy AI

While they store your chats on secure servers, they don't mention encryption anywhere in their privacy policy.

They share your data with companies like DigitalOcean for hosting, but your data still travels beyond Fantasy AI's walls.

In your bank statement, you’ll see "fantasy ai"—which isn’t very discreet

Chub AI

Chub AI doesn't encrypt your chats. They say they take "reasonable measures" to protect your data, but won't tell you what these measures are.

The platform collects everything — your email, account details, and full conversations. They keep this data, but for how long? They won’t say.

Your information is also shared with outside companies that handle hosting, payments, and usage analytics.

Your bank statement will list it as "Postcron.com", which keeps things discreet.