Chai AI Alternatives: Where the Chat Lives

What Chai is, and who runs it

Chai is an iPhone and Android app from Chai Research Corp., registered at 555 Hamilton Avenue, Suite 300, Palo Alto, California. The company's homepage says it has "built a consumer platform where users can build their own AI characters and stories"; its Google Play developer page puts the same idea shorter — "CHAI is building a social AI platform where users can build their own AI." Android release is dated 23 March 2021 on that listing, and the roadmap on the company site dates the App Store launch to November 2022, claiming it was "the first to launch a consumer AI platform, allowing users to create their own ChatAIs—ahead of Character AI and ChatGPT." The characters are made by whoever shows up: "Character creation now open to everyone!" reads the store description, and a character "can be kept entirely private or shared for everyone to engage with." There is no browser client. The homepage lists iOS and Android as live and "CHAI WEB" as "Coming Soon..."

The machine behind it

How much is running underneath gets published in unusual detail. The homepage counts 5,000 GPUs across NVIDIA A100, NVIDIA L40S and AMD MI325x and MI300x nodes, 1.2 trillion tokens served a day, 51,000 unique LLMs in service, above 1.4 exaflops of cluster performance, and a consumer business "reaching $100M ARR in 2026" on more than $55M raised. Google Play counts 10M+ downloads. The two stores disagree about how the app lands: 4.3 out of 5 from 284K ratings on Apple's listing, 3.0 from 838K reviews on the United States Google Play page, both read the same afternoon.

Where the prices live, since the site has none

No price appears on chai-research.com. Its /pricing address returns a 404, and the only sentence about money on the whole site sits in the safety centre: "In some regions, use of the service requires a paid subscription." Apple's listing carries the actual figures, eight of them — a Premium Membership at $9.99, a Premium Subscription at $13.99 monthly or $134.99 for the year, an Ultra Subscription at $19.99 weekly, $29.99 monthly or $269.99 for the year, plus "200 Pieces" at $2.79 and "500 Pieces" at $6.99. Pieces are a second currency, and neither store page nor the site says what one of them buys. Google Play prints a span instead of a list, "$0.99 - $899.99 per item", and flags the app "Contains ads", which Apple repeats as "Contains: Advertising". Downloading costs nothing on either store. What the unpaid version includes before the advertising or the paywall starts isn't stated on any page we could open.

What the licence agreement rules out

The content rules, at least, are written down, which is more than much of this category manages. Chai's End User License Agreement, last updated 28 July 2026, is blunt at 7.1: "The generation, sharing, or distribution of sexually explicit images or videos of any kind on the Chai AI platform is strictly prohibited." Section 8 runs the other way with the same directness — "Chai AI is a platform strictly restricted to users aged 18 and older. Because our artificial intelligence models allow for expansive, user-driven roleplay, you may encounter or generate adult-oriented content, including mature themes and fictionalized violence" — on condition that anything adult "must remain strictly fictional." The safety centre adds that the models "are designed to refuse the generation of restricted material, including sexually explicit content, self-harm content, and any content that sexualises minors," that every message is scanned in real time for self-harm content, and that filtering mature material is a switch the user flips: "You can enable safety filters in the app to filter out mature content in search, hide explicit messages and block specific characters." Grown-up text is expected, then, and explicit pictures are barred outright. One thing doesn't line up: the safety centre states the app "is rated 18+ on the Apple App Store and Google Play", while the United States Play page shows "Mature 17+" under the descriptors "Violence, Sexual Themes, Use of Drugs and Alcohol, Strong Language, Crude Humor".

What Chai says its models are tuned for

The same site also publishes what the models were trained to maximise, entry by dated entry. May 2023: the base model was optimised "to decrease the probability a chat session ends." June 2023: a reward model "trained with 100 million signals to decrease user retry rate and increase chat session length." December 2025, after a switch to larger mixture-of-experts blends: "Platform screentime and both revenue increased by 25%." None of it is buried, and it is worth reading before the first evening disappears — the quantity being pushed up is time inside the app.

How the order below works

One narrow question sets the order, and it happens to be the only one we come first on: does she reach you where you already type, or do you go somewhere to reach her? A messenger already on the phone ranks over a browser tab; a browser tab ranks over a download. Catalogue size, model quality and cost of entry aren't scored at all, and on all three Chai beats everything under it.

PolyBuzz is second because it is the nearest straight swap. It opens in a browser at polybuzz.ai with native apps beside it, its homepage claims "over 20 million characters" and invites you to "create your own AI characters", and its App Store listing prints tiers rather than burying them: Poly Standard at $9.90 a month or $4.99 a week, Poly Premium at $19.90, Poly Ultimate at $29.90, Coins from $2.49 to $19.90, and 1,000 Opals for $5.90 — two currencies, the same arrangement as Pieces. Its Play listing counts 50M+ downloads, 4.0 from 1.18M reviews, and "Contains ads". Apple rates it 18+, marking "Mature or Suggestive Themes" and "Sexual Content or Nudity" as frequent, so its ceiling sits somewhere other than Chai's, though neither company writes down exactly where. An oddity worth knowing about: the opening paragraph of PolyBuzz's Play description — "Our app revolutionizes the way we interact with AI chatbots..." — is the same text as the opening paragraph of Chai's, word for word, on both listings, read the same day.

Talkie comes third on identical footing and publishes less. Its site leads with "Free AI Character Chat", offers a Create button, a memory section and a community feed, and shows a "- 50%" badge next to "Unlock with Talkie+" with no number anywhere near it. No price, no content policy, no install count on the page — a Community Guidelines link and a Download App button, and that is the extent of it. Its domain does check out: talkie-ai.com is canonical to itself and names Talkie as the site. But a product advertising a discount without a price leaves a reader exactly where Chai leaves them.

We come first on that question and last on nearly every other. TooShy isn't an app: the conversation happens in WhatsApp or Telegram, in the thread list beside everyone else you write to, with nothing to install and nothing to open. Premium is $9.99 a month, Ultra $19, both printed before signup, with no advertising, no second currency and no packs; the free photo allowance is 10 a week. There is no adult-content filter, so nothing waits behind a higher tier and nothing needs switching on. And there is no character editor of any kind — every character is written in-house, none are made by users, and an idea for somebody who doesn't already exist has nowhere to go. Against a catalogue that anybody can add to, that is the trade, and it isn't a small one.

Two names that come up constantly next to Chai go unrated, because their own sites wouldn't answer. JanitorAI returned a 403 to every request. Chub AI served a document holding its own title and nothing else — no product copy, no prices, no policy. Both are real, both have real followings, and neither gets a claim pinned to it on the strength of somebody else's summary.

Our own thirty days

Ours are aggregates out of the production database for the 30 days ending 1 September 2026 — counts and shares, no message text, nothing that points at a person. 44,120 messages across WhatsApp and Telegram, 460 people in real conversations, 1,009 conversations, 425 new registrations. The average active conversation ran 64 messages; the longest got to 899. By subject, 7.37% of messages touched photos, 4.34% touched explicit material and 0.36% touched memory — a useful corrective, given how much of this category's marketing is about remembering. And 9.0% were opened by the character rather than the person, which is the part the messenger pays for: she can go first.

What Chai does better than we do

Three things, concretely. Anybody can build a character on Chai and either keep it to themselves or publish it for everyone, which is the entire product and something we do not offer in any form — all of ours are written in-house, with no user-made bots. Second, getting started costs nothing, funded by advertising on both stores, where our WhatsApp side needs a subscription before anything happens. Third, the engineering is genuine and out in the open: 51,000 distinct models in service, 1.2 trillion tokens a day, its own blending and reinforcement-learning work laid out step by step with dates. We publish no equivalent numbers, for the plain reason that we don't have them.

Where we fall short

Our gaps are short to list. No editor and no user-made bots, as above. No app and no browser client either, so for anyone not already on WhatsApp or Telegram there is no door at all, where Chai works for anybody holding a phone. The unpaid route in is Telegram only; WhatsApp is behind the subscription. We put no number on how far memory reaches and name no model. And the cast only grows when somebody here writes one, which is slower than ten million people writing their own.

Who each one fits

Wanting a bot for every idea you have ever had, including ones you build yourself, is an argument for staying where you are or moving to PolyBuzz — both are libraries, both start free, both carry advertising. Wanting that without a download points at PolyBuzz or Talkie, of which PolyBuzz is the one that tells you the price first. If explicit imagery is the whole point, Chai's own agreement rules it out in writing, so that search has to go somewhere else entirely. And if the appeal is that she turns up in WhatsApp or Telegram at a flat monthly price, with no advertising and nothing to install, that's the one thing on this list nobody else here does.

Still to settle by hand

A few questions need an account and a card rather than a careful reading of a public page, so they stay open. What a Piece actually buys inside Chai, and whether Pieces or a subscription is the cheaper road to the same thing. Whether the unpaid tier still caps messages a day, and at what number. Whether flipping the safety filter on changes what the model writes or only what search will show. Whether subscribers still see advertising. What Coins and Opals each unlock on PolyBuzz. And what Talkie+ costs, given that the site shows a discount and no price. Every one of those needs hands on the product, which is why none of them is answered above.

How we checked the facts

Everything here about Chai was read on its own public pages on 30 September 2026: the homepage and its dated roadmap, the End User License Agreement of 28 July 2026, the Safety Center, the Apple and Google Play listings, and the Chai Research developer page on Google Play. Where a price exists only on a store listing, that's where it is credited from — the company site states none, and chai.ml answers with a 301 to it. PolyBuzz and Talkie were read the same day on their own domains and store listings, with canonical address and site name verified rather than assumed, after a lookalike domain in this category turned out to be somebody else's copy. JanitorAI and Chub AI are marked unverified, because a 403 and an empty document are not facts about a product. Our own figures are production aggregates over the window named above.