Anthropic Locks China-Based Users Out of Claude as Its IPO Roadshow Begins

The ban has three prongs, and each closes a different door. From November 12, Anthropic's updated usage policy refuses service to anyone physically located in mainland China, to any company registered or headquartered there, and — the prong that reaches furthest — to any company controlled by mainland Chinese individuals or institutions, even if its staff work entirely overseas. A startup founded in Shanghai, incorporated in Singapore and operating out of San Francisco is, on paper, out of compliance. Chinese tech media called it the strictest purge in the company's history; the most-read version of the story, on 36Kr, ran under a headline announcing that the strictest account-ban wave had arrived.

What made the news cut was the contrast with how these same users were treated when they were customers. "The payment page once let you select 'China' and link a UnionPay card," wrote Zhang Kangkang, a tech commentator whose summary card of the three new rules circulated widely on Weibo. "Welcome when taking money, banned when using it — and if the leftover balance isn't refunded either, is this a subscription channel or a donation channel?" That last question was screenshotted, repeated and argued over across Chinese developer forums overnight.

Some read the move as pure candor. Blogger Li Jianqiu pointed out that Anthropic had disclosed its ban-without-refund policy in its IPO prospectus. "I like that they wrote it into the prospectus," he wrote. "Yes, it's a provocation." On his reading, the company is simply stating what the export-control era has made true: Chinese users are not a market to be won but a liability to be priced.

The timing is pointed. Anthropic's roadshow began this week, with demand reported at several times the shares on offer and a price range of 70 to 78 dollars a share — a listing that would rank among the largest ever. We looked at the filing itself when it landed, and the numbers behind it explain the investor queue. Since then the company has also disclosed about ten billion dollars in new commitments to rent cloud capacity from Microsoft and Google through 2033.

For the people on the wrong side of the three tests, the consequences are practical: subscriptions paid for but now unusable, API pipelines that need a day-one alternative, and corporate accounts whose "control" question has no clean answer. The story led 36Kr's morning edition and put Anthropic on Baidu's trending board under at least five separate headlines — a sign that this registers as more than a developer concern. Chinese commentary read the rules as the software layer of the chip regime: the hardware was fenced off first, and now the models are following. Whether Anthropic enforces the ownership test with the precision it applies at the payment page is the question its incoming public shareholders will inherit.