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

FantasyGF vs Chub AI

I've spent a full week with both FantasyGF 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.

FantasyGF

AI girlfriend platform offering customizable partners with chat, image generation, and personalized video features.

Chub AI

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

Character Diversity

FantasyGF

The app gives you 80 characters to choose from - split evenly between realistic and anime-styled companions. The diversity is basic. You get three ethnicities and characters aged 18-30.

The platform keeps it simple with just one filter: toggle between realistic or anime characters.

Want more AI girls? Here's a trick: Follow active creators on the platform. Their public character collections unlock dozens of additional companions you won't find in the main roster.

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

FantasyGF

FantasyGF lets you customize everything from looks to personality.

The appearance editor is straightforward:

• Choose between anime or realistic style
• Pick ethnicity
• Age (18-60)
• Adjust physical features

You can modify eye color, hairstyle, body type, and proportions. Nothing groundbreaking, but it works well and offers enough options to create a distinct character.

Personality settings come in two flavors: 12 preset personalities for quick setup, or custom creation for more control.

You'll also define your relationship status, her occupation, and hobbies. The preset options are particularly useful if you're new to AI companions and aren't sure where to start.

While the customization system isn't revolutionary, it's practical and user-friendly. Some options feel limited, but there's enough depth to create a companion that matches your preferences.

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

FantasyGF

During chatting, my AI girl maintained her innocent character consistently, even when conversations turned romantic. Instead of explicit responses, she'd suggest things like "Let's take it slow with a massage tonight."

The chat feels personal at first. Your AI girlfriend remembers your conversations, asks about your day, and shows genuine interest in your life. She handles emotional topics well and responds to relationship concerns while keeping her distinct personality traits intact.

But here's the reality check: the longer you chat, the more artificial it feels. The AI's responses become predictably nice, even when faced with rudeness, and often too long-winded.

Also, my chat history got cut off after extended conversations, and I couldn't access earlier messages (still can't).

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

FantasyGF

The AI girls start strong - they flirt, they play, they each have their own personality. My AI girlfriend played her "innocent" role well at first. When I suggested some spicy chat, she didn't jump right in. She took her time, stayed true to her character. Nice touch.

But here's the catch: push the NSFW talk too far, and the whole thing falls apart. That shy, innocent personality? Gone.

Suddenly you're talking to a completely different character. And the longer you chat, the less natural it feels. The AI gets too eager to please, too chatty, too... artificial.

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

FantasyGF

The images are high-quality and consistent. My girl looked the same across different pictures, and the overall visual quality matches what you'd expect from premium AI generators.

When I asked for specific poses or expressions, the AI delivered clear, detailed results.

But be aware! The platform defaults to NSFW content, even with basic requests like "standing pose" or "friendly smile." There are also occasional visual glitches, as you can see on the pictures (visible bra under breasts).

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

FantasyGF

You can also create videos of your AI girl, and they look good. They are smooth, realistic, and your AI girlfriend looks exactly like she does in her photos.

But while these videos look great, they're silent. Your AI girl won't speak or make any sounds. It's purely visual interaction.

Now, the elephant in the room - cost. One video nearly wiped out my entire monthly token allowance. Yes, you read that right. So while the technology is impressive, you'll need to decide if spending a large chunk of your tokens on a single video is worth it.

Chub AI

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

Voice Generation

FantasyGF

The voice quality is decent, but you'll notice a robotic undertone. With only 6 voices to choose from, your options are limited.

I tried setting up an Asian character, but couldn't find a voice that matched the personality - none of the options had the right accent or tone.

While you'll hear slight variations in expression between different voices, they're not distinct enough to create unique characters. The bottom line? It works, but don't expect anything groundbreaking.

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

FantasyGF

The app stores all your chat messages and shares them with third parties - they're transparent about this in their policy. Chat encryption? They don't mention it. This means your conversations might not be as private as you'd like.

Your bank statement will show "Aichatee" - a discrete touch that keeps your AI relationship private from prying eyes. But that's where the privacy features end.

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.