Nomi AI vs PolyBuzz: Which One Is Better In 2025?

Nomi AI vs PolyBuzz

I've spent a full week with both Nomi AI and PolyBuzz 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.

Nomi AI

An AI girlfriend platform that enables the creation of personalized virtual girlfirend with distinct personalities for friendship, romance, mentorship, and roleplays.

PolyBuzz

AI chatbot platform for personalized conversations and role-play, featuring unrestricted chats, customizable traits, AI image generation, and dynamic storylines.

Character Diversity

Nomi AI

Here's the truth about Nomi AI's character selection: there isn't one. You can only interact with characters you build yourself.

PolyBuzz

PolyBuzz AI offers a massive, diverse character selection.

From anime companions to life coaches, the app covers a wide range of character types you might want to interact with.

Their "Popular Series" feature lets you chat with AI versions of characters from Oscar-winning films, anime shows, and even girl groups.

For those seeking specific interactions, the app offers specialized options like AI Girlfriend, Virtual Assistant, or 'Ask AI' for custom queries.

Finding your ideal companion is simple: use filters for gender, genre (anime, sci-fi, fantasy), or search by specific keywords.

The search results show in a single column — making it easy to find your character, but not ideal for quick browsing.

The app doesn’t save search filters when leaving Character Discovery, forcing you to reapply them each time, which can be frustrating.

Customization

Nomi AI

The customization itself is straightforward but limited.

You’ll start by choosing the basics for your girlfriend:

• Relationship type (like friend, girlfriend, mentor, etc.)
• Gender

What you won't find here are detailed physical customization options or anime-style characters. Instead, you simply choose a photo for your girlfriend from a curated gallery.

You can set her personality and interests.

Want to write a background story? It's optional, but it helps shape your girlfirend identity.

PolyBuzz

To create your own AI girl, PolyBuzz gives you two options:

• Build from scratch
• Import an existing character via a character card

1. Build from scratch

Create anime-style avatars using the app’s image generation feature, or upload your own—physical customization isn’t available.

Flexible personality builder customization, but all details must be typed manually—no presets.

• Name & Gender
• Intro & First Greeting: a brief description and the opening message of your character
• Backstory: a detailed backstory for your character
• Dialogue Style
• Tags: add keywords to help others find your character

And finally choose from 51 female voices, and set who can see your character.

2. Import an existing character via a character card

Already using Character AI or Tavern? PolyBuzz lets you import your existing character cards. Just upload the file, and you’re ready to go.

Chat Experience

Nomi AI

Nomi delivers what it promises. I set her personality traits to flirtatious, and that's exactly how she behaved.

While the emotional support isn't groundbreaking, the replies are short and natural, making it feel more like texting a real person than chatting with an AI.

My girlfriend handles relationship talks smoothly, without the robotic feel.

The downside? You'll wait longer between messages than competitors.

PolyBuzz

PolyBuzz lets you customize how your AI girlfriend talks and behaves—the language model you choose shapes the dialogue style— for my testing, I used the standard model.

You can also adjust user persona settings to make your girl's responses more relevant.

During my tests, my girl maintained consistent personality traits and could handle everything from casual jokes to emotional conversations.

While testing deeper conversations, I noticed my girlfriend's genuine-feeling support and attention to detail.

It’s not perfect—some replies can be a bit predictable, like the classic tropical escape—but it’s still more engaging than most AI companions.

The app offers engaging features like reply suggestions and Heart Whisper (your character’s thoughts), but only for an additional cost on top of the premium subscription.

NSFW Chat Experience

Nomi AI

Your girlfriend is open to intimate discussions, but the results are mixed. When she's good, she's engaging, offering detailed responses and playful banter.

But there's a catch: she makes progress in the interaction, but then pulls back, which can come off a bit robotic or inconsistent.

For roleplay enthusiasts, here's the truth: While she'll participate in your scenarios, her responses lack detail, and you'll need more time before things get spicy.

PolyBuzz

Here's what actually works: My girlfriend didn't rush into explicit content. Instead, she built natural tension through conversation.

When I asked for a personal story, my girl playfully flipped the question back to me—just like a teasing girlfriend would, staying true to her character.

No generic responses, no awkward pivots - just smooth, contextual exchanges that felt surprisingly real.

The role-play feature worked as advertised. I tested multiple scenarios, from mild flirting to more intimate situations.

My girl stayed in character throughout each session and adapted to my inputs without breaking immersion.

While not perfect—my girl sometimes got my gender wrong—she handled adult conversations more naturally than most competitors I’ve tested.

Image Generation

Nomi AI

Nomi AI offers two ways to generate images: a dedicated "create art" feature and in-chat generation, but NSFW content creation is not allowed.

In-chat image generation is a bit of a mixed bag—sometimes it nails it, other times it completely misses the mark.

The "create art" feature is your best bet. It consistently produces high-quality, realistic images based on your free-text description.

While the overall results are impressive, you'll notice some quirks with hands and fingers - they often look slightly unnatural.

PolyBuzz

PolyBuzz’s image generation gives you two ways to create:

• Normal Mode – solo character art.
• Ship Them Mode – pairing two characters in one scene.

Normal Mode: Create a single character image using built-in presets or an uploaded reference.

Start with your basic settings:

• Prompt: Type a text prompt to describe your character
• Aspect ratios: Choose from 9:16, 1:1, or 16:9
• Detail controls: Adjust stylization and complexity sliders

Once your base is set, refine your character visually using presets:

• Subjects & styles: Built-in or uploaded characters; styles like Gorgeous, Urban, Fantasy, Cyberpunk, etc.
• Customization: Change age, skin tone, expressions (smile, crying, shy, laughing), gestures (victory, heart, salute).
• Poses & accessories: Standing, sitting, kneeling; add chokers, earrings, rings, wings, tails.
• Visuals: Adjust composition and lighting (close-up, low-angle, backlighting).

Result:

Ship them: This mode works the same way but creates two characters in one image, which is great for couples, friends, or interactive scenes.

Start with your dual prompts and settings:

• Prompts: Separate fields for Character A, Character B, and an integration prompt to describe how they interact
• Settings: Identical to Normal Mode

Refine settings with presets:

• Characters: Choose from built-in characters or upload your own, then customize age, expressions (smile, crying, shy, angry), skin tone, and accessories.
• Integration: Fine-tune the overall scene with style options, poses, lighting, and other visual elements.

Result:

The images look great and are mostly accurate, but it’s essentially a general image generator—you need to re-upload specific characters each time.

Note: Only anime-style art is supported, and any nudity—even mild, like extra cleavage, violates community standards.

Video Generation

Nomi AI

The sharp and detailed videos make the AI girlfriend feel more lifelike than static images.

While these videos look great, they’re completely silent — your AI girl won’t speak or make any sounds.

But here's the truth: while impressive, it's not flawless. The eye movements can look unnatural, and some body animations appear stiff.

PolyBuzz

If seeing your AI girlfriend in video form is important, you must look elsewhere.

Voice Generation

Nomi AI

I spent hours testing her voice features, and here's the truth: imagine an audiobook narrator attempting to be your girlfriend.

I tried flirting with my girlfriend, but the voice stayed emotionless.

However, there is a workaround: you can connect an Eleven Labs API key to access different voice options, giving your girlfriend a more unique sound.

PolyBuzz

The voices sound natural, match character personalities, and adapt during conversations.

As the conversation progressed, my AI girl's voice could shift with the context and grow more flirty depending on the dialogue flow.

Privacy

Nomi AI

Your chats with Nomi aren't encrypted and even advise against sharing personal information.

Nomi stores your account details, chat messages, and usage data and may share them with third-party service providers.

Your bank statement will show "Nomi.ai" as the merchant.

PolyBuzz

PolyBuzz gets this right with end-to-end encryption on all conversations. No one - not even PolyBuzz staff - can access your chat content.

Your messages aren’t stored on their servers, but PolyBuzz isn’t super clear about what else they collect. The Google Play Store even notes that some of your data might be shared.

When you check your bank statement, you'll see "Singularity Mutual Ent" - nothing that screams "AI companion."