Chai AI

Chai AI

Chai is a social AI chat platform for talking with millions of user-created characters. Chai lets you browse a feed of community chatbots, message them in roleplay or story style, and publish your own characters for others to use. As of 2026 Chai runs on its own in-house language models and is mobile-first on iOS and Android, with uncensored character chat available alongside mainstream personas. Chai is free to start, with a paid tier that raises messaging limits.

Production credibility: Founded in 2021 in Palo Alto, Chai reached 1 million users in early 2022 — ahead of ChatGPT and Character.AI — and the company reports more than 10 million users with revenue scaling past a $40M annual run rate. It has raised $55M+ from investors including CoreWeave and AMD, maintains its own language models with a small engineering team, and has a Wikipedia entry.

Key Features

• Feed-style discovery of millions of user-created AI characters
• Roleplay and story-style conversations
• Create and publish your own chatbots
• Proprietary in-house language models
• Uncensored character chat for adult users
• Mobile-first apps for iOS and Android

Ideal Use Case

People who want an endless library of community-made AI characters to chat and roleplay with on their phone, plus the ability to build and publish their own bots, including uncensored personas.

How Chai AI differentiates

Character.AI is the best-known character-chat app but filters adult content; Chai keeps a large library of user-generated characters with uncensored options and runs on its own models rather than a third party's. Its feed-first, mobile design makes discovery the core loop. The trade-off is variability — community characters range widely in quality — and that the heaviest usage sits behind a paid tier.

FAQ

Q: What is Chai AI? A: Chai is a mobile social platform for chatting with millions of user-created AI characters and publishing your own, running on the company's own in-house language models.

Q: Chai vs Character.AI? A: Both are character-chat apps, but Chai allows uncensored community characters and runs its own models, where Character.AI applies stricter content filtering.

Q: Is Chai free? A: Chai is free to start, with a paid subscription that raises daily messaging limits.

Q: Does Chai have NSFW characters? A: Yes — Chai hosts uncensored, user-created characters for adult users alongside its mainstream personas; all characters are fictional.

tl;dr

Chai is a mobile social AI platform for chatting with millions of user-made characters and building your own, on its own in-house models, with uncensored personas for adults. Founded 2021; reports 10M+ users and $55M+ raised. A user-generated, uncensored alternative to Character.AI.