Key Points
- A customer filed a proposed class action against Anthropic over its Claude Max plans.
- The suit alleges Max 5x ($100) and Max 20x ($200) deliver less usage than advertised.
- Plaintiff Karl Kahn seeks damages and class status for buyers since April 2025.
- Anthropic declined to comment.
A Claude customer has filed a proposed class action accusing Anthropic of overselling its priciest subscriptions. Filed this week in the U.S. District Court for the Northern District of California by Washington, D.C. resident Karl Kahn, the suit alleges that Anthropic's Claude Max 5x and Max 20x plans deliver far less usage than the company advertises. The claims are unproven, and Anthropic declined to comment.
What the suit alleges
Max 5x runs $100 a month and is marketed as five times the Pro plan's per-session capacity; Max 20x runs $200 and is sold as twenty times. According to the complaint, the actual usage falls well below those numbers, and Anthropic never clearly defined how usage is calculated — leaving subscribers unable to verify what they were paying for. Kahn says that after upgrading to Max 20x, a single five-hour coding session ate roughly 15% of his weekly allowance, pushing him into hard caps within days and, at times, forcing him to buy additional usage on top of the plan.
What it's seeking
The filing seeks damages, restitution, and injunctive relief, and asks the court to certify a class covering U.S. consumers who bought or upgraded to Max 5x or Max 20x since April 9, 2025. As a proposed class action, it still has to clear class certification before it represents anyone beyond Kahn.
The read
Anthropic's pricing problem is now a legal one. The complaint lands days after the company paused a separate Agent SDK billing change following developer backlash — and both fights trace to the same root: usage opacity. When neither a $200 subscriber nor an agent developer can see how their limits are counted, every cap reads as a moved goalpost. Whether or not the suit survives certification, it puts a courtroom price on the trust gap Anthropic has been managing all year.
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