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

Chub AI vs Sakura AI

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

Sakura AI

A character-based AI interaction platform where you can chat intimately with custom AI personalities and explore a growing community of unique characters.

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.

Sakura AI

Sakura AI offers a huge collection of anime-style AI girlfriends.

The search system is straightforward—you can filter by character type (male, female, non-binary, lesbian, etc.).

When you're looking for particular character types, you can also use keywords and toggle NSFW content on/off.

The library expands regularly as users add their custom-made characters to the public collection.

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.

Sakura AI

Instead of tweaking physical features, you'll craft your character through storytelling in freeform text.

Basic customization lets you upload an image or generate one from text.

You can set gender and voice and even add a background image to your chat.

But that's not where Sakura AI shines. The real customization happens through free-text inputs.

You write your character's description, personality, and scenario from scratch and can also fine-tune how your AI responds through Model Instructions.

The platform includes a practical tagging system (Tsundere, Vampire, Non-binary, etc.) to help categorize your creation.

However, if you're looking for detailed physical customization like choosing eye color or body type, you won't find it here.

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.

Sakura AI

I tested my girl in a role as my ex-girlfriend, and the girl is warm, stays in character, and keeps conversations flowing.

When I needed emotional support, my girls offered it with a bit of flirtation, and she played along naturally.

Whether my girlfriend talks about relationship concerns, her responses feel genuine and thoughtful.

The app includes a mature content warning, so you can expect adult conversations when appropriate.

The chat interface needs improvement, sometimes it's hard to distinguish narrative messages from my girl's.

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.

Sakura AI

During my testing, my girlfriend kept recycling the same flirty responses, even when I tried different approaches.

The biggest letdown? Her roleplay feature. My girl switches back to being my "ex-girlfriend" and starts repeating the same lines.

I tested this multiple times - same result.

The immersion breaks faster than you can say "mood killer."

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.

Sakura AI

The images are clean and well-drawn, matching what you'd expect from modern anime art.

You can't control exactly what pictures you get. The app generates random images right in your chat conversations.

If you want to direct every detail of your character's appearance, you might find the randomness frustrating.

Video Generation

Chub AI

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

Sakura AI

Sakura doesn't offer any 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.

Sakura AI

After spending hours testing different conversations, I can tell you, the voice is clear but lacks any real personality.

Think of it this way: Whether I'm flirting, joking, or having a serious chat, Sakura's voice stays flat.

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.

Sakura AI

While Sakura claims to use advanced encryption, I couldn't find this explicitly stated in their policy. They also store your conversations and personal information. They share data with third parties.

On top of that, payment is more complicated than their competitors, as it requires using multiple platforms and connecting them together.

Your bank statement is safe - payments appear as "GANKPTELTD".