Anthropic · Claude · California · Decrypt
According to Vaca Daffan LLP Founding Partner Kati Daffan, who is representing Kahn
Compiled by KHAO Editorial — aggregated from 2 sources. See llms.txt for citation guidance.
✓ KHAO Verified
"This is a good type of case for a class action, because the law is clear that companies have to be honest about their advertising and marketing,” Daffan told Decrypt.
Key facts
- Max 20x costs $200 per month and is marketed as providing 20 times the Pro plan's usage capacity per session
- The lawsuit comes days after Anthropic launched Claude Fable 5 and Claude Mythos 5, its most advanced AI models to date
- In the lawsuit, Kahn said he subscribed to Claude Pro in June 2025 before upgrading to Max 5x in January, and Max 20x in April of this year
- Max 5x costs $100 per month and is marketed as providing five times the Pro plan's usage capacity per session
Summary
Anthropic is facing a lawsuit over its Claude Max AI subscription plans. Plaintiff Karl Kahn alleges the company's Max 5x and Max 20x tiers provide less usage than advertised. The lawsuit seeks damages, restitution, injunctive relief, and class certification. Anthropic is facing a class action lawsuit alleging the AI company misled customers about the amount of usage included with its premium Claude Max subscription plans. The complaint, filed June 14 in the U.S. District Court for the Northern District of California by customer Karl Kahn, seeks to represent other Claude subscribers who purchased the company's Max plans and alleges Anthropic misled customers about the amount of usage included with its premium subscription tiers.