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Judge Tse Lets Claude Max "5x or 20x More Usage" Ad Claims Proceed Against Anthropic

Published
Score
20

Why it matters

A federal magistrate judge in San Francisco, Alex Tse, ruled on November 6, 2026 that Anthropic's "5x or 20x more usage than Pro" pitch for Claude Max is plausibly misleading. Breach of contract and negligent misrepresentation claims can proceed against Anthropic PBC, while unfair business practices and false advertising claims were dismissed. The plaintiffs, Karl Kahn and Solomon Smith, are paying subscribers who filed a proposed class action in June. They argue the multiplier is measured against Claude Pro's five-hour session window, while Max users also face weekly caps. They calculated the real weekly gain for one Claude model at only 3.5x and 6x. Tse found the per-session disclosure sat two hyperlinks away from the main sales pages on claude.com. He reasoned that the contract could cover those pages because the terms send buyers to the order process for subscription details. He rejected the claim that mid-cycle limit cuts were a bait-and-switch. He also found Kahn and Smith had not shown they could seek a court order requiring Anthropic to change its ads, because they remained subscribers despite knowing about the disputed marketing. Pro costs about $20 a month, Max 5x is $100, and Max 20x is $200.

The ruling does not decide that Anthropic misled anyone. No class has been certified, and no court has found that Anthropic misled anyone. Reports of the ruling differ on whether a California consumer-law claim survived, so that point is unsettled. Anthropic's position is that customers should read "more usage" as a per-session promise, and it points to a help page that explains the distinction. The company has not responded publicly. The plaintiffs must file an amended complaint by December 2, 2026. If they do not, Anthropic must answer by December 16, 2026.

The case matters beyond these two plaintiffs. Anthropic's amended S-1, filed November 2, says it faces several putative class actions over how it markets Claude subscription plans, so the litigation now intersects with its IPO disclosures. The central question, how far a usage-multiplier pitch can be read as a promise, applies to any AI subscription seller. Attorneys advising such companies should check whether per-session limits and weekly caps appear on primary sales pages rather than behind links. Watch the December 2 amended complaint, especially whether a consumer-law claim is pleaded, and track how courts treat limit changes made during a billing period.

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