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AI · 9 November 2026 · 3 min read

A judge let a Claude Max claim proceed. That is not a finding the ads were false

Reuters reported on 9 November that a magistrate judge in San Francisco has said Anthropic must face a claim its “5x” and “20x” Max plans could be read as a monthly multiple. The suit says the multiple is per five-hour window, and that the weekly caps are smaller. Letting a claim proceed is the start of a case, not the end.

The word Anthropic in white letters across a backlit keyboard, in a blue-toned illustration.
Reuters’ illustration of the Anthropic name on a keyboard. It is a graphic. It is not a courtroom, and it is not a subscription page.

Reuters reported on 9 November that US Magistrate Judge Alex Tse, in San Francisco, has ruled that Anthropic must face claims it misled buyers of Claude Max. The proposed class action, Kahn and Smith versus Anthropic, was filed in September in the Northern District of California, number 3:26-cv-05763. The plaintiffs say the $100 and $200 monthly plans were sold as five times and twenty times the usage of a cheaper plan. The judge, Reuters reports, said they had plausibly alleged that a reader could take that as five or twenty times the usage over a month.

The suit’s own description of the product is narrower than the headline. Reuters says the plaintiffs allege that Max subscribers do get five or twenty times the usage of Pro inside a five-hour window, and that weekly caps are not five or twenty times higher. A gap between a session and a week is the allegation. It is not a measurement published by the court. The judge let the plaintiffs file an amended complaint. Anthropic had not commented when Reuters published. A ruling that a claim may go forward is a ruling about what the complaint says. It is not a finding that the advertisements were false.