Anthropic is facing a class action lawsuit over allegations of misleading advertising related to its subscription service for the AI model Claude. The lawsuit, filed by attorneys Monica Vaca and Kati Daffan, claims that the company misrepresented the benefits of its Max subscription tier, which is an upgrade from the $20/month Pro plan. The Max plan offers two pricing options: $100 per month for “5x” the usage limits of Pro or $200 per month for “20x.” However, the lawsuit argues that these claims are misleading due to fine print that limits the promised usage to five-hour chunks of time, subject to a weekly cap, which significantly reduces the actual increase in usage capacity.

Details of the Allegations

The complaint highlights that users must navigate multiple hyperlinks to fully understand the limitations of the Max plan. Vaca noted that many users are surprised to find that the expanded usage they expected is not delivered upon signing up. “People see that they are going to get this dramatically expanded usage … What we hear from people, though, is that when they sign up, they are surprised that they’re not getting the usage that they thought they were getting,” she stated.

Complaints regarding the Max plan’s terms have surfaced on platforms like Reddit, where users expressed frustration over the limitations imposed by the weekly allowance. One user likened the situation to “giving someone a bigger gas tank while keeping the fuel pump limited to one gallon every five hours.”

Context and Industry Implications

The lawsuit comes amid growing concerns in the AI industry regarding pricing transparency and the pressures companies face to remain profitable. Anthropic introduced the Max plan in April 2025 but allegedly implemented the restrictive weekly limits a few months later, in August, as it sought to compete with other AI providers like OpenAI. In a recent model release, Anthropic acknowledged customer feedback on pricing, indicating that it is aware of the dissatisfaction among its user base.

In response to the initial complaint, Anthropic argued that the information regarding session limits was accessible to consumers through hyperlinks during the purchase process. However, Vaca countered that it should not be the consumer’s responsibility to seek out such details, emphasizing that the marketing should be clear and straightforward.

Legal Precedents and Consumer Rights

Vaca and Daffan, both with extensive backgrounds at the Federal Trade Commission, believe the case is significant in addressing false advertising in the AI sector. Vaca remarked, “There is a long line of precedent on false advertising. It’s commercial speech. You can’t lie when you’re marketing a product.” She expressed concern that consumers are often left in the dark about what they are purchasing, leading to a “buyer beware” scenario that is unfair to users.

As the lawsuit unfolds, it raises important questions about the responsibilities of AI companies in their marketing practices and the need for clearer communication regarding subscription services. For more details, you can read the full article on The Verge.