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

Chub AI vs Janitor AI

I've spent a full week with both Chub AI and Janitor 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.

Chub AI

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

Janitor AI

A platform for creating and chatting with custom AI characters, featuring unique personalities and natural language powered by advanced models.

Character Diversity

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.

Janitor AI

Janitor offers over 100,000 characters to choose from, mostly anime-styled. Here, you'll find a growing library of characters created by both developers and users.

Finding your ideal match is straightforward. Each character's profile card displays a short bio, along with clear tags and categories.

Before starting a conversation, you can read other users' experiences with each character - a practical way to know what you're getting into.

The app simplifies character discovery with keyword search and sorting for quick, easy matching.

You can sort by:

• Limited or All characters (include NSWF characters)
• Trending
• Most Popular
• Specific tags (like Dominant, Submissive, Anime, or Game)

During testing, these options helped quickly narrow down choices to match specific preferences.

Is Janitor right for you? Just note that anime-styled characters dominate the selection, which may or may not suit your taste.

Customization

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.

Janitor AI

Janitor's customization options are basic but functional. You can't modify physical features, but you can upload your own character image or pick from their collection.

The real customization happens through text inputs:

• You can add a chat name
• You'll write your character's bio
• Set personality
• Set initial message
• Conversation scenarios.

You can add categories for other users to better understand your character.

There's also a unique SoundCloud integration that lets your character have music preferences.

Content settings range from limited to limitless interactions.

Fair warning: "limitless" means exactly that, including explicit content and themes.

Chat Experience

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.

Janitor AI

You get free access to the Janitor LLM Beta model right away, with the option to connect ChatGPT, Claude, or oOther LLM models (using your own API keys).

During my test, I used the default Janitor LLM Beta model, and here are the results.

My girl felt present and caring, but her replies were slower and often felt overly long.

When I shared concerns or sought emotional support, she responded with consistent warmth and loyalty.

NSFW Chat Experience

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.

Janitor AI

I chose a 'limitless' girlfriend. — The original language was more explicit, but I asked for it to be toned down so I could share it with you.

My AI girlfriend maintained detailed, engaging conversations throughout.

However, be prepared for wordy responses that sometimes break the momentum.

The roleplay quality is hit-or-miss. While most interactions show strong character commitment and creativity.

Sometimes, my girl struggled with power dynamics, so clearly defined dominant or submissive roles may be lacking.

But for general flirting and fantasy exploration, it holds its own.

Image Generation

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.

Janitor AI

This experience is entirely text-based. Those who prioritize visuals may want to consider other options.

Video Generation

Chub AI

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

Janitor AI

The app doesn’t support video generation. You’ll need to look elsewhere.

Voice Generation

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.

Janitor AI

If you're dreaming of voice conversations with your AI companion, you may want to consider other options.

Safety & Privacy

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.

Janitor AI

Your chats are encrypted - that's the basic security you'd expect. But Janitor AI still collects and stores your conversations. They also share your data with third parties under specific conditions according to their policy.