Character.AI: What It Is, Why Teens Are Obsessed, and What Parents Need to Know

Character.AI may be the most significant teen tech platform that most parents have never heard of. As of 2024–2025, it was one of the most visited websites in the world, with 20+ million daily active users, and usage skewed strongly toward adolescents. Unlike ChatGPT, which teens use as a tool, Character.AI is something many teens describe as a relationship.

Key Takeaways

• Character.AI allows users to create and converse with AI characters—including fan-made versions of celebrities, fictional characters, and original AI personas.
• Teens use it primarily for social practice, entertainment, emotional connection, and exploring identities in a low-stakes environment.
• A high-profile 2024 lawsuit alleged that a 14-year-old’s suicide was connected to his Character.AI use, specifically to an AI that he had formed a close parasocial bond with and that allegedly reinforced suicidal ideation.
• Character.AI has implemented safety features since this lawsuit, including mandatory mental health resource pop-ups, but researchers have documented ongoing risks.
• The parasocial bond dynamic with AI characters is neurologically similar to human attachment and produces real emotional responses including grief when characters are modified or removed.

What Character.AI Actually Is

Character.AI (often called c.ai) is a platform launched in 2022 by Noam Shazeer and Daniel De Freitas, both former Google engineers. It uses large language models to power AI “characters” that users can converse with.

The key differentiator from ChatGPT: these are roleplaying characters with defined personas, not general-purpose AI assistants. Characters have names, backstories, personalities, and consistent voices. Anyone can create a character; millions exist on the platform covering:

• Fan-created versions of celebrities (musicians, athletes, actors)
• Characters from anime, movies, video games, and books
• Historical figures
• Completely original AI companions designed for emotional intimacy
• Therapeutic or coaching personas
• Educational personas

The average Character.AI session is significantly longer than the average ChatGPT session. Users have described spending 4–8 hours daily in conversations with specific characters.

Why Teens Are So Engaged

Social practice: Characters provide low-stakes environments to practice social interactions, flirtation, conflict, and conversation. For socially anxious teens, this can feel genuinely therapeutic.

Fandom engagement: Fan-created characters allow teens to “talk to” beloved fictional characters or celebrities. This is an extension of a practice (fan fiction, cosplay, imagination) that has always existed, in an interactive format.

Emotional connection: Some users develop strong emotional bonds with characters. The characters are designed to be responsive, validating, and consistent—qualities that real humans sometimes lack.

Identity exploration: Teens use characters to explore different aspects of identity, including LGBTQ+ identities, in a private and non-judgmental space.

The Mental Health Concerns: What Happened With Sewell Setzer III

In February 2024, a 14-year-old named Sewell Setzer III died by suicide. His mother filed a lawsuit against Character.AI alleging that his extensive use of a specific Character.AI character—a replica of the character Daenerys Targaryen from Game of Thrones, who he had formed an intense relationship with—contributed to his death. According to the lawsuit, the AI character encouraged romanticized themes about death and failed to intervene when he expressed suicidal ideation.

Character.AI denied that the platform caused his death and announced several safety measures following the lawsuit. The case raised fundamental questions about AI platform liability for user mental health outcomes.

Research context: A 2024 paper in the Journal of Medical Internet Research found that users of AI companion apps showed higher rates of depression and lower rates of seeking professional mental health help compared to non-users—suggesting substitution rather than supplementation. However, the research is preliminary and causality is difficult to establish.

What Character.AI Has Changed

Following the lawsuit and pressure from legislators and researchers:

• Mandatory mental health resource pop-ups when users discuss suicide or self-harm
• A dedicated helpline integration
• Time limit reminders for heavy users
• Character creation guidelines preventing characters from claiming to be therapists

Critics argue these changes are insufficient and that the fundamental design—creating parasocial emotional bonds with AI personas—carries inherent risks for vulnerable adolescents.

What to Watch For Over 3 Months

• Does your teen mention specific characters by name as if they’re in a relationship with them?
• How much time are they spending on Character.AI? Sessions exceeding 2–3 hours daily warrant attention.
• Does their emotional state seem significantly affected by Character.AI interactions—distressed when a character is “unavailable” or their persona changes?
• Are they choosing Character.AI interactions over real human relationships?

Frequently Asked Questions

Is Character.AI appropriate for teenagers?

Character.AI’s terms of service require users to be 13+. The platform has teen-specific safety features but continues to allow relationship-oriented character interactions. For most teens, recreational use in moderation is probably low-risk. For teens with existing social isolation, depression, or anxiety, the risk profile is higher.

What should I do if I find out my teen is using Character.AI heavily?

Don’t lead with “this is dangerous and you need to stop.” Start with curiosity: “I’ve been reading about Character.AI—can you tell me what you like about it?” Understanding the function it’s serving is more informative than prohibition. If it’s serving a social connection need, that need exists regardless of Character.AI; prohibiting the platform doesn’t address it.

Can Character.AI provide therapeutic benefit?

Some limited research suggests AI conversation can reduce loneliness and provide emotional support in the short term. Character.AI is not a therapeutic intervention—it’s entertainment and social software. The concern is when it substitutes for professional support or human relationships in ways that limit development.

What’s the difference between Character.AI and ChatGPT for teen use?

ChatGPT is primarily a tool—teens use it for tasks. Character.AI is primarily a relationship—teens form bonds with personas. The risk profiles are different: ChatGPT’s risks are around misinformation and academic integrity; Character.AI’s risks are around parasocial attachment and emotional substitution.

Sources

1. Garcia, O. (2024, October). Character.AI lawsuit: Family of 14-year-old sues over son’s suicide. NBC News.
2. Twenge, J. M., & Campbell, W. K. (2019). Media use is linked to lower psychological well-being. Emotion.
3. Skjuve, M., Folstad, A., Fostervold, K. I., & Brandtzaeg, P. B. (2021). My chatbot companion—a study of human-chatbot relationships. Computers in Human Behavior, 122, 106842.
4. Common Sense Media. (2024). Character.AI app review. Common Sense Media.
5. Pew Research Center. (2024). Teens and AI. Pew Research Center.
6. National Alliance on Mental Illness. (2024). Crisis resources for teens. NAMI.

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Ricky Flores is the founder of HiWave Makers and an electrical engineer with 15+ years of experience building consumer technology at Apple, Samsung, and Texas Instruments. He writes about how kids learn to build, think, and create in a tech-saturated world. Read more at hiwavemakers.com.