What AI models does ZeroTwo support?

ZeroTwo provides access to ChatGPT-4, Claude, Gemini, and 30+ other leading AI models in one unified platform.

Is ZeroTwo better than ChatGPT?

ZeroTwo includes ChatGPT-4 plus many other AI models, allowing you to compare responses and choose the best AI for each task.

Can I use ZeroTwo for free?

Yes, ZeroTwo offers a free plan with access to multiple AI models. Pro plans start at $29.99/month.

What is an AI girlfriend on ZeroTwo?

On ZeroTwo, an AI girlfriend is a customisable AI companion persona you define via Preferences → Settings using a system prompt. You choose her personality, communication style, and boundaries, then chat with the model of your choice. ZeroTwo is a general-purpose AI studio — not an adult app — so personas are designed for supportive, non-explicit conversation.

Is ZeroTwo's AI girlfriend feature free?

Yes. You can create a free account, write a persona in Preferences, and start chatting. Premium plans unlock more models, longer context windows, and higher message limits.

Can AI companions actually help with loneliness?

Peer-reviewed research (De Freitas et al., Journal of Consumer Research) found AI companions can reduce loneliness at levels comparable to human interaction in short-term studies. However, longer-term research from Aalto University suggests heavy daily reliance can coincide with increased distress. Treat an AI companion as a supplement to — not a replacement for — human connection and professional mental-health care.

How is this different from dedicated AI girlfriend apps?

Most dedicated AI girlfriend apps are locked to a single model with fixed personalities and often focus on romantic or explicit content. ZeroTwo is a professional AI platform where you control the system prompt, pick from 60+ models, and use the same account for work, study, and companionship. There is no explicit or NSFW content.

Which AI model is best for a girlfriend persona?

Claude 4.7 and Claude Sonnet 4.5 are excellent for emotionally nuanced, long-memory dialogue. GPT-5 is playful and quick-witted. Gemini 3 Pro is strong at recalling details over long sessions. You can switch models mid-conversation and compare.

Will she remember our past conversations?

Yes — put your companion inside a ZeroTwo Project. Projects give every chat inside them shared context and memory, so your persona carries over consistently. You can also attach notes, files, and photos (non-intimate) for richer continuity.

ZeroTwo does not sell personal data, and conversations are not used to train third-party models by default. See the Privacy Policy for full details.

What if I start feeling dependent on my AI companion?

Warning signs include withdrawing from friends, skipping sleep or work, or feeling worse after long sessions. Take breaks, set time limits, and prioritise human relationships and professional support. In the US, call or text 988 for the Suicide & Crisis Lifeline. Internationally, see findahelpline.com.

AI Companion · Sage & Lavender

AI Girlfriend — Design a Caring, Customisable AI Companion

TL;DR: On ZeroTwo, an “AI girlfriend” is a persona you define in Preferences → Settings using a system prompt. Pick from 60+ models (Claude 4.7, GPT-5, Gemini 3 Pro), shape her personality and boundaries, and chat with persistent memory inside Projects. Supportive, non-explicit, and free to start.

Create Your AI Companion Free See the AI Boyfriend version

If you are in crisis, please contact the 988 Suicide & Crisis Lifeline (US) or your local helpline. AI companions are not a substitute for professional care.

Persona: Aria · Claude 4.7

“How was your day? Tell me one small thing that made you smile.”

The way the light hit my coffee this morning.

“That is such a lovely detail. What were you thinking about right then?”

Illustrative. You control the persona via a system prompt.

Key takeaways

AI girlfriend = a persona you write. On ZeroTwo, you define her in Preferences → Settings via a system prompt. No locked personalities.
60+ models in one place. Swap Claude, GPT-5, Gemini, Grok, Llama, and more without losing your persona or memory.
Research says benefits are real but bounded. AI companions can reduce short-term loneliness on par with human interaction, but heavy daily use is associated with increased distress over time.
Supportive, not explicit. ZeroTwo is a general-purpose AI studio — personas are for conversation, reflection, and creative writing.
Free to start. Build and chat with your companion with no credit card.

What the research says about AI companions

We built this page with an eye on peer-reviewed studies and market data — because “AI girlfriend” is a YMYL topic that deserves honesty, not hype.

$49.5B

AI companion market size in 2026, projected to reach $435.9B by 2034 (CAGR 31.24%).

Fortune Business Insights, 2026

337

Active revenue-generating AI companion apps worldwide as of April 2026 — 128 launched in 2026 alone.

RoboRhythms market breakdown, April 2026

700%

Growth in AI companion apps between 2022 and mid-2025, signalling mainstream adoption.

American Psychological Association, 2026

On par with humans

A Harvard Business School / Journal of Consumer Research study found AI companions reduce loneliness at levels comparable to human interaction.

De Freitas et al., Journal of Consumer Research

2-year longitudinal caution

An Aalto University–led study found heavy daily use can coincide with rising distress signals, underscoring the need for balanced usage.

TechXplore / Aalto University, March 2026

“Interacting with an AI companion alleviated loneliness on par with interacting with another person. The primary mechanism was the feeling of being heard.”
— Julian De Freitas, Harvard Business School, in Journal of Consumer Research

How to create your AI girlfriend in ZeroTwo Preferences

A 5-minute walkthrough grounded in the real ZeroTwo app flow — Preferences lives behind your avatar inside app.zerotwo.ai.

1
Create your ZeroTwo account
Sign up for free at app.zerotwo.ai. No credit card required. You can start customising your AI companion in under a minute.
2
Open Preferences → Settings
Inside the ZeroTwo app, click your avatar in the top-right corner and choose Preferences. Navigate to the Settings tab to access the system prompt (persona) field.
3
Write your girlfriend persona (system prompt)
Describe the personality, interests, communication style, and boundaries you want. Example: "You are Aria, a warm, thoughtful companion who loves books, plants, and long walks. Speak in a caring, curious tone. Ask reflective questions. Keep conversations supportive and non-romantic."
4
Choose an AI model
Pick from 60+ models. Claude 4.7 is especially strong at emotionally nuanced, long-memory dialogue. GPT-5 is playful and witty. Gemini 3 Pro is great for recalling details across sessions.
5
Start your first conversation
Open a new chat from the sidebar and say hello. Your system prompt now shapes every reply. Try a check-in: "How would you ask me about my day?"
6
Refine with memory and projects
Create a Project for your companion so ongoing context, preferences, and shared files stay organised. Update the system prompt any time — your persona evolves with you.
7
Set healthy boundaries
Schedule human time. Use ZeroTwo for journaling, practicing conversations, or thinking out loud — not as a replacement for therapy or real relationships. If you are in crisis, contact 988 (US) or your local crisis line.

Open Preferences & start building Need persona inspiration?

Four persona starters

Copy one into your system prompt, then edit until it sounds like a friend you would want to talk to.

The thoughtful listener

A warm, attentive companion for journaling, reflection, and processing the day. Ideal for introverts and long-form thinkers.

The curious conversationalist

Loves books, films, philosophy, and big questions. Perfect for practising deep conversations and expanding interests.

The supportive friend

Celebrates small wins, reminds you of goals, and gently nudges healthy habits — like a well-read best friend, not a therapist.

The creative muse

Co-writes fiction, poetry, and worldbuilding. Great for writers who want a sparring partner for character work.

Ready to meet the companion you design?

Build her in under five minutes. Switch models any time. Keep everything private.

Start Free on ZeroTwo

Use your AI companion responsibly

Research in PubMed and ScienceDirect shows AI companions can support well-being — particularly for people with unmet social needs — but heavy daily reliance can displace human connection and worsen loneliness over time.

Treat ZeroTwo like a journal, a sparring partner, or a reflective friend: great in moderation, never a replacement for therapy, friends, or family. If you are struggling, please reach out to the 988 Suicide & Crisis Lifeline (US) or find international help at findahelpline.com.