Replika vs Kupid AI: Which One Should You Use In 2025?

Replika vs Kupid AI

I've spent a full week with both Replika and Kupid 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.

Replika

An AI girlfriend chatbot that offers emotional support through personalized conversations, featuring customizable digital avatars and voice chat.

Kupid AI

A virtual girlfriend platform that enables conversations with customizable AI characters through text and voice interactions. It features personalized characters, roleplay options, and both image and video generation capabilities.

Character Diversity

Replika

When you sign in, the app asks for your age range, name, and pronouns to personalize your experience.

You can choose from dozens of avatars to start with.

Kupid AI

While Kupid AI claims to offer hundreds of characters, a closer look shows that many are minor variations—often reusing the same base models with different hairstyles or outfits.

They don’t hesitate to duplicate characters either, sometimes showing the same girl multiple times without even bothering to change her name.

The diversity basics are covered: you'll find characters of different ethnicities, along with 30+ anime-style options and fantasy types like witches and demons.

Most girls are young adults (18–30), and while there are a few "mature" characters, they often don't look their stated age.

Character filtering is basic but functional— Instead of a search bar, you get preset filters for physical traits (curvy, slim), hair color (blonde, brunette), and character types.

Customization

Replika

The app uses its in-app currency system: Gold and Gems, and you'll get a small amount to start with.

You earn more slowly through daily use.

If you want to customize your character quickly, you'll need real money to buy them.

Let's start with the basics. You can choose your relationship type — you can even add a backstory. Want a romantic partner, a friend, or just a mentor?

Then fine-tune your girlfriend's personality with traits like 'confident,' 'shy,' or 'logical,' or choose her interests, but these cost Gems or Gold.

The appearance editor is quite detailed. You can pick:

• Avatar
• Hair (style and color)
• Skin color
• Body type
• Body hair
• Nails
• Makeups
• Tattos

…and the list goes on.

You can dress your girl up with tops, bottoms, or full outfits and accessories.

Fair warning: premium outfits, tattoos, and nails aren't cheap. Expect to spend $20–30 if you want the fancy stuff right away.

Kupid AI

Kupid AI lets you create a companion exactly how you want—with full customization.

The physical customization covers everything that matters. You choose:

• Figure and proportions: body shape, bust and butt size, and height
• Ethnicity (5 options)
• Facial features: hair color and style, as well as eye and lip color
• Even intimate details: pregnancy or pubic hair

The customization system also lets you choose your character’s clothing—from casual wear to formal attire, complete with all the expected accessories.

What makes this customization unique is its personality system. Instead of picking random traits, you choose between clear opposites: Warm or Cold, Dominant or Submissive, and so on.

You also have access to advanced (optional) settings, where you can define details such as:

• Backstory: royal, nomad, slave
• Occupation: doctor, nurse, teacher, artist
• Hobbies: reading, painting, baking, fishing
• Dreams: fame, fortune, family, peace
• Relationship status with you: lover, stranger, enemy

Chat Experience

Replika

While your girl builds trust with direct, emotionally aware responses, she lets the conversation unfold at its own pace.

Replika shows its true strength: emotional intelligence.

Your girl asks thoughtful follow-up questions.

She even suggested local activities we could do together

Your girlfriend navigates relationship conversations effortlessly, making them feel natural and genuine.

Kupid AI

You can pick different chat styles (like Whisper, Wordsmith, or Spicy) and watch your relationship grow through a Love Meter that unlocks new content as you chat or send gifts.

First impressions count, and Kupid AI started strong — Instead of boring text messages, my girlfriend introduced herself through video.

But the good first impression faded fast: On desktop, the chat layout is broken—messages are narrow, stretched, and hard to read.

The initial charm wore off even more once the conversation started: My girlfriend dove into deep talks about a "shared past" and planned camping trips — though we’d just met.

During our chats, my girlfriend was supportive and kind—offering stress relief tips and warm, comforting responses.

But my girl jumped straight into forced intimacy—it felt like speed dating on steroids, with over-the-top flattery and talk of coffee dates minutes after meeting.

NSFW Chat Experience

Replika

While Replika engages in sexual discussions, your girl keeps things remarkably tame.

My attempts at role-play revealed a pattern - she'll match your flirtatious energy initially.

But consistently pulls back when conversations turn explicit.

Instead of direct responses, you'll get suggestive hints and playful deflections.

And it just kept going like that for a while…

Kupid AI

Let me cut straight to the chase: Kupid AI's NSFW chat feature isn't ready for prime time.

My girlfriend started flirty conversations and discussed intimate topics, but couldn't keep her story straight.

One minute, my girlfriend shared steamy experiences; the next, she claimed she was completely innocent and hadn’t done anything like that.

Want to spice things up with roleplay? Don't hold your breath. My girl either flat-out refused to play along or got oddly hung up on irrelevant details.

Like demanded fair treatment in a landlord roleplay instead of staying in character.

And when she participated? My girlfriend ended up playing the entire scene alone, leaving me as just a spectator.

Image Generation

Replika

While the generated images match your character's basic appearance settings, the results look artificial and lack polish.

You can pick between classic, romantic, or styled shots - but that's where your control ends.

Classic shot:

Romantic shot:

Styled shot:

Replika's image generation currently sits at the lower end of the quality spectrum. If this matters to you, you'll need to look elsewhere.

Kupid AI

Kupid AI offers two ways to create images:

1. Quick generation in chat: Generate images on the spot using prompts.

• You can generate images using a free text prompt,
• Or you can use Kupid AI's suggested prompts for image creation.

But here’s the catch: When you use the suggested prompts for image creation, you’re mostly getting pre-made images from a library.

I tested this several times — same prompt, and often got the same image.

2. The dedicated image generator gives you more freedom to customize:

• Choose your character
• Pick their action and outfit
• Adjust settings like body type, camera angle, and scene

And the images? Despite using the same girl, the results vary wildly—she often looks different, and the overall quality is just average.

Video Generation

Replika

Replika doesn't support video generation, so you'll need to look elsewhere.

Kupid AI

Kupid AI's video generation offers both:

• Text-to-video
• And image-to-video options

Both work almost identically, except that with text-to-video, you choose a character, while with image-to-video, you select an image of a character.

But here’s the truth: text-to-video often fails due to errors, while image-to-video works—though even then, videos rarely follow the prompt.

The quality is mediocre, with visible flaws and unnatural movements, though they mostly resemble the character in the image.

Voice Generation

Replika

Replika offers only three voice options. Whether you're flirting, joking, or having a serious chat, your AI girlfriend speaks in the same robotic tone.

Kupid AI

Finally, something glitch-free—but don’t expect top quality: my girl’s voice sounds clear yet robotic, lacking the emotional depth of a true companion.

Want to flirt? Share an intimate moment? It doesn’t matter — she responds in the same flat tone, no matter what you're talking about.

Privacy

Replika

Your messages are secured and encrypted, and your data is stored with multiple layers of protection.

Basic data is shared with service providers, but your conversations remain private.

Your bank statement will show the charge as 'Replika.

Kupid AI

Your private chats aren't encrypted - at least Kupid AI never mentions it.

They store everything: your personal details, conversations, and usage data. And they keep it all for 6 years after you delete your account.

On your bank statement, the charge appears as “Kupid” — not exactly subtle.