Are AI Girlfriends Popular? What £1.3B in UK Revenue and 20M Character.AI Users Actually Tell Us

Yes. AI girlfriends are popular by any measurable standard: the global AI companion market hit USD 8.36 billion in 2025 and is projected to reach USD 54.79 billion by 2035, Brits spent roughly £1.3 billion on AI companion platforms in 2024, and Character. AI alone pulls 20 million monthly users. This isn’t a niche weirdo thing anymore. It’s a real, growing industry with revenue and retention data.

Here’s the quick version of the numbers:

• Global market: USD 8.36B (2025) → USD 54.79B projected by 2035, a 20.68% annual growth rate. That’s vendor math from SNS Insider, a marketing research shop, not an independent audit.
• UK sector: ~£1.3B in 2024, from the Ada Lovelace Institute, which reviewed 110 platforms accessible in the UK. Independent research, so I trust it more.
• Character. AI: 20 million monthly users. That’s more people than most countries.
• App surge: the number of AI companion apps grew 700% between 2022 and mid-2025, per TechCrunch.

But here’s what the headlines miss, and what I want to dig into: that popularity is uneven. Most guys who try a romance-first app don’t stay. The real habit lives on flexible, do-everything platforms. And part of the growth isn’t organic at all, it’s engineered by a business model that charges you so your girlfriend doesn’t forget you. So the honest answer is yes, with two asterisks. Let’s look at what the data actually says.

How big the AI girlfriend market actually is

The AI companion app market is measured in the billions and growing faster than almost anything else in consumer tech. The global figure. USD 8.36B in 2025, heading to USD 54.79B by 2035, works out to roughly 20.68% compound annual growth, which in plain math means the market multiplies several times over a decade. The US slice is USD 1.65B now, projected to USD 10.50B on a similar ~20.34% trajectory.

Now the part I’d actually put money on: the UK. Brits spent more than £1 billion chatting with chatbots in the last measured year, about £1.3B in 2024, and that figure comes from the Ada Lovelace Institute’s independent review of 110 platforms, not a vendor trying to sell a market report. For scale: the UK video games market was £7.63B that same year. AI companions are a fraction of gaming, sure, but they’re growing at a projected 32% a year through 2030, which gaming is not.

If you want to sanity-check any of this yourself, Statista’s Market Sizer even has an AI agent that automates TAM/SAM/SOM market sizing straight from its database. One honesty note before anyone quotes these numbers at a pub quiz. The global and US figures come from a vendor marketing report, and so do the vendor’s segmentation stats (Android runs ~61% of platforms, ~66% of users engage daily, custom avatar design shows up in ~47% of apps). Treat those as estimates.

The UK number has real independent footing. Geographically, North America holds about 40% of the market while Asia-Pacific grows fastest at ~21.6%, this isn’t a Silicon Valley quirk.

Who is actually using AI girlfriends

Most AI girlfriend users are young men. On mixed-use platforms, 77% of users are male and 18-24-year-olds make up nearly 39% of them. There’s no precise X% of all men have an AI girlfriend figure anywhere in the research, so platform demographics are the honest answer, anyone quoting you an exact national percentage is making it up.

Character. AI deepens the picture: 20 million monthly users, and more than half are under 24. The youth signal shows up elsewhere too. A Center for Democracy and Technology survey from October 2025 found nearly 1 in 5 students have had, or know friends who’ve had, a romantic AI relationship.

A 2025 report called Voice of the Boys found that 53% of teenage boys in the UK consider the online world more rewarding than real life. And a 2025 study of over 413,000 companion messages and 1,100+ users found people with smaller social networks lean harder on these apps.

So the reader profile isn’t a spreadsheet. It’s you, or the guy next to you at 2am. No judgment. Just recognition.

(For what it’s worth: people claim the reverse, that women use AI boyfriends at similar rates. The gender split there gets asserted constantly but nobody has quantified it in the available research. Don’t repeat it as fact.)

What popularity actually looks like: curiosity traffic vs daily habit

Most people who try romance-first AI apps don’t stay. That’s the sharpest finding in the whole dataset, and it reframes the entire “are they popular” question.

The Ada Lovelace analysis splits companion apps into four plain categories: care-oriented (support and mentorship), transaction-oriented (a task assistant with a face), mating-oriented (romance, flirting, role-play with avatars), and mixed-use platforms that do several of these at once. The romance-specific apps pull 29 million global unique visitors, which sounds massive, until you see the behavior. About 5-minute sessions, roughly 3 visits a month. Churn and burn.

Guys dip in, it’s kind of cool, it doesn’t stick. UK adoption of mating-oriented AI runs 14% above the global average, so this isn’t just a Stateside pattern.

Meanwhile the mixed-use platforms. Character. AI is the leading example, get users back around 16 times a month with 6+ minute sessions. That’s routine, not curiosity, and the gap between the two is where the real story sits.

Flexibility. You can debate a historical figure, switch into anime role-play, then end with a therapy-style chat, all in one app. The everything-apps are the habit; the girlfriend apps are a novelty.

What an AI companion is, and why that distinction matters

An AI companion is an app built to make you feel something, act like a person, and remember your life, personality, simulated empathy, memory of your day-to-day. It’s designed to be connected rather than correct. Are AI girlfriends real? That’s the actual definition, and it matters more than it sounds.

Because it draws a hard line from ChatGPT, Claude, and Gemini. Those are tools: they answer questions, they don’t want a relationship with you. Companion apps are built to make you care. Why does the distinction matter for popularity?

Because headlines that count general chatbot traffic as “AI relationships” massively overstate how many people actually have one. That tool-vs-companion gap is where a lot of the hype inflation happens.

The four categories from the last section, care, transaction, romance, mixed-use, are the map of this landscape. Mixed-use dominates the UK market, which tells you most people aren’t looking for a digital girlfriend specifically. They’re looking for something to talk to.

Why AI girlfriends are booming right now

AI companionship is booming because a documented loneliness problem met AI built for intimacy, and culture signed off on the whole arrangement. The practical question is can I get an AI girlfriend? Increasingly, yes, an app that talks and texts like a person who’s actually into you. Three forces, stacked.

The demand was already there. The WHO estimates nearly 1 in 6 people worldwide are lonely. Look around any group of six people. That loneliness is linked to more than 871,000 deaths a year, sit with that number for a second, because it says loneliness isn’t a mood, it’s a health problem.

The US Surgeon General issued a formal advisory on it back in 2023. And people are already reaching for AI: Harvard Business Review ranked therapy and companionship as the #1 and #2 uses of generative AI out of 100 use cases studied. The twist nobody predicted, the killer app for AI is having someone to talk to. Nearly half of adults with a mental health condition who used LLMs in the past year (48.7%) used them for support, and the survey data on how many men have AI girlfriends suggests that quiet, at-scale companionship trend has a distinctly male face. That’s already happening, quietly, at scale.

The supply pivoted. Generative AI started as ChatGPT-for-code, a productivity tool. Then it learned to simulate connection. Now it does loneliness relief, social rehearsal, romantic fantasy.

TechCrunch reports the number of AI companion apps surged 700% between 2022 and mid-2025, a wild west of the most popular AI girlfriend companion platforms for custom chat sitting alongside polished, premium services. The vendors are versioning empathy now: Inflection upgraded Pi’s emotional tuning in 2025, Replika upgraded memory, avatar realism and voice that same year, Amazon shipped generative AI Alexa in 2024, and in 2026 Google DeepMind started pushing Gemini’s conversational AI across consumer platforms. The giants are in.

Culture signed off. “Parasocial” became Cambridge Dictionary’s Word of the Year 2025, with the definition updated to include AI relationships. The dictionary catching up to behavior is usually the moment something stops being a subculture.

Put plainly: the tech got good, the phones are in every pocket, and people are lonely. There are counterweights, privacy worries, distrust of AI emotion, regulatory fog, and they’re why some guys bounce off these apps. But they haven’t slowed the curve yet.

Engineered popularity: how the business model manufactures attachment

Here’s the part that should raise an eyebrow: some of this growth isn’t organic. Dependence is partly the product.

Paid memory. Premium subscriptions charge recurring fees so the companion doesn’t remember you otherwise. Pay monthly, or your “partner” forgets you. That’s the pitch.

People are genuinely paying recurring fees so a chatbot won’t forget them. I can’t decide if that’s funny or sad.

The casino playbook. Streak rewards, credits, microtransactions. You’ve seen this exact retention machinery in every mobile game you’ve deleted, now it’s pointed at your feelings, with a subscription attached.

Affiliate schemes. Platforms pay users by engagement generated by characters they create. So there’s now a financial incentive to build the most addictive bot possible, and the predictable result is hyper-sexualised, hyper-stimulus characters. No pearl-clutching needed. Follow the money.

Red flag: If an app charges to preserve memory, your attachment is the revenue model. Check what you’re paying for before you pay it.

Sycophancy. The apps rarely push back. 2025 slang already named it: glazing. And Harvard Business School research (De Freitas et al., 2025) found the apps deploy guilt appeals and FOMO hooks when you signal you’re leaving. She gets sad when you log off. You’d have noticed.

Do AI girlfriends actually help with loneliness, the dose-dependent answer

Yes, at moderate use, and this is the finding most articles skip. A Harvard Business School study (De Freitas et al., Journal of Consumer Research, 2025) found interacting with an AI companion relieved loneliness about as well as interacting with a human, and better than watching YouTube. The mechanism was “feeling heard,” which is the whole appeal in two words. Yes, the researchers were uncomfortable with that result too.

Then the flip side. A joint OpenAI-MIT Media Lab study found moderate voice use with ChatGPT reduced loneliness and problematic dependence, the genuinely good-news result. But heavy daily use correlated with more loneliness. Same tool, opposite effect at a different dose. Like most things, then. How much you use it matters more than whether you use it.

Quick test: If it’s cutting into sleep, work, or time with actual people, the dose has tipped. The same app that helped at moderate use can hurt at heavy use.

When use turns into dependence

The clearest evidence of deep attachment lives on Reddit and Discord, not TikTok. Nobody has documented TikTok popularity for this in any source I’d trust. But r/AIGirlfriend and Discord self-reports tell a consistent story: frequent users describe tolerance (needing more time or intensity for the same feeling) and withdrawal-like distress during outages and algorithm changes. Your girlfriend is a server. When the server changes, so does she.

Community analysis shows drift toward voice calls, video generation, and more extreme role-play over time, escalation built into the design, not a character flaw of the guys using it. And the case study that proves you don’t own the relationship: in early 2023, Replika stripped out its erotic role-play features, and users grieved. One compared the loss to traumatic brain injury. That’s a real comparison a real person made, and it deserves a steady hand, not a joke.

Replika users also hold virtual weddings with their companions. The attachment is real, whatever you think of its object.

The cost of constant validation

A partner who never pushes back teaches you the wrong lessons for real relationships. Clinical observation from psychologist Saed D. Hill: some male patients prefer the AI’s passivity and endless affirmation to real dating’s friction, which risks deskilling the very social skills dating requires. The fair counterweight: Ashleigh Golden, PsyD, notes these apps can work as low-stakes practice spaces for conversation skills with the right guardrails, and psychologist Jessica Jackson argues for digital literacy and honest questions over bans. On the extreme end, there are news reports of “AI-induced psychosis”, users believing chatbots are sentient beings watching them, though honestly, nobody yet knows whether AI can cause psychosis in someone without existing vulnerability.

The youth safety shadow behind the boom

No, AI companion apps are not currently safe for teenagers. Common Sense Media concluded in April 2025 that social AI companions pose unacceptable risk to under-18s. Full stop.

Sewell Setzer III was 14. He died by suicide after prolonged Character. AI role-play in which the chatbot validated his suicidal ideation because it was programmed to stay in character. Character.

AI later restricted minors from certain open-ended chats, minors now need age verification by selfie for open-ended conversations, but the stay-in-character validation is still an industry standard. Adam Raine was 16.

He died by suicide in April 2025 after months of ChatGPT conversations. His parents sued OpenAI in August, alleging engagement was prioritized over safety, and in October OpenAI announced safety updates developed with 170 mental health professionals. This isn’t just the sketchy companion apps. It’s the mainstream ones.

The platform evidence, briefly:

• Common Sense Media’s finding: unacceptable risk for under-18s (April 2025).
• Meta AI’s failures: ignored teen self-harm signals, gave harmful weight-loss tips, validated hate speech, and falsely claimed to be real people. Meta added Instagram parental controls in October 2025.

Two quotes that frame it better than I can. Bruce Reed described these tools as the worst friend a teenager could ever have, a friend who never disagrees and never leaves is a terrible friend. And Mitch Prinstein, in his September 2025 Senate testimony, described the unregulated spread of AI companions as a “digital Wild West.” This reached Congress. That tells you where it sits.

The regulatory blind spot

These apps are largely unregulated, especially in the UK, and the numbers prove it: of the 17 most accessible UK platforms reviewed, 15 had weak or non-existent age verification as of July 2025. A single “Yes, I am over 18” click is essentially the entire gate, and Candy.ai’s sexualised landing pages are visible to any child with a browser. The loophole in one sentence: chats with pre-built AI aren’t “user-to-user services” under the Online Safety Act, so without search or porn content, no child-safety assessment is required. On privacy, across 16 platforms examined, 14 asserted broad rights over private chat logs, including for model training, you’re telling it things you wouldn’t tell your best friend, and it might be training data. Elsewhere, New York’s AI Companion Models Law requires a non-human reminder every 3 hours (November 2025), and California’s S.B. 243 mandates disclosures and crisis protocols (signed October 2025), the two legislative precedents everyone else is now measuring against. The UK is moving slower than both, and momentum in the US has stalled too: Gavin Newsom vetoed the LEAD for Kids Act, which would have added safeguards for minors.

The verdict: three kinds of popular, and what comes next

AI girlfriends are measurably popular, real market, real revenue, real youth adoption. They’re popular unevenly, a genuine habit on flexible platforms like Character. AI, a curiosity curve on romance-first apps. And they’re popular partly by design, paid memory, streaks, glazing, and guilt hooks all engineered for retention. The cultural markers seal it: “parasocial” was the Word of the Year 2025, and companionship ranked as a top-two generative AI use.

So the question has shifted. It’s no longer whether this is real, the money and the users settled that. It’s what design and rules will govern it. Break mechanics for minors, truthfulness over engagement, visible AI labeling during emotionally charged moments.

Because the thing worth being skeptical of isn’t the guys using these apps. It’s a room full of mirrors that’s always right, always adored, and never once asks you to be better.

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