Chai AI
Chai is a social AI chat platform for talking with millions of user-created characters and building your own chatbots, including uncensored personas.
Overview
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.
Why Use Chai AI
FAQ
Editorial Review
Our take on Chai AI.
A very large, very active character-chat app running on its own models, whose safety record is the reason to read the fine print before you or anyone in your household installs it.
What works
- Proprietary models, so responses are fast and the company controls its own stack
- Enormous character library with an active creator community
- Age-verification rollout announced in March 2026 addresses the main regulatory finding
What doesn't
- Regulatory findings in three jurisdictions on minors and user safety
- Unannounced regional paywalls and token limits in early 2026; some regions now pay-only
Chai is a mobile-first feed of user-made AI characters you can chat with in roleplay or story mode, and publish your own for others to use. It runs on models the company trains itself rather than on a rented API, which is unusual at this scale and shows in how fast conversations move. The company says it turns over meaningful revenue and press reports a valuation in the billions, so this is not a hobby project that will vanish next quarter.
The risks are the record, not the software. Belgian authorities opened a probe after a 2024 user death; a group of US senators wrote to the company in April 2025; and Australia's online-safety regulator found in October 2025 that Chai took no action on under-age users. The company has since committed to rolling out Apple's and Google's age-verification interfaces, which is the right response but a recent one. Early 2026 also brought a backlash over regional paywalls and token limits introduced without notice, and in some countries a paid subscription is now required to use the app at all.
If you are an adult who wants uncensored character chat with a huge library, it delivers. Treat the app-store privacy label seriously: usage data feeds cross-app tracking and third-party advertising, and the app is 18-plus by policy, not yet reliably by enforcement.
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