Anthropic faces class‑action lawsuit from power users alleging deceptive subscription practices

Background on Anthropic’s Max Subscription

Anthropic introduced the Max plan for its Claude model in April 2025 as a premium tier above the $20‑per‑month Pro plan.

The Max tier offers two price points: $100 per month for “5x” the Pro usage limits and $200 per month for “20x”.

Anthropic promoted these multipliers as a straightforward increase in the amount of compute users could consume.

Power users of Claude, who rely on high‑volume access for professional projects, quickly became a focal point of the company’s revenue strategy.

Allegations of Misleading Advertising

A group of Max subscribers filed an expanded class‑action lawsuit claiming the advertised multipliers are misleading because they apply only within five‑hour session windows that are themselves subject to a weekly cap.

The complaint argues that the fine‑print limiting sessions is buried behind two separate hyperlinks, requiring users to click “session” and then consult the Pro plan page for a definition.

“You’ve got to dive deep,” Vaca said, describing the effort needed to uncover the true limits.

One Reddit user summarized the experience: “The weekly allowance is what the pricing page makes you think you’re buying. The rolling 5‑hour window is what actually controls whether you can work … It’s like giving someone a bigger gas tank while keeping the fuel pump limited to one gallon every five hours.”

Attorney Monica Vaca explained that many Claude users upgrade impulsively when they encounter limits, only to discover the expanded usage does not match their expectations.

Vaca quoted users: “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.”

The lawsuit notes that Anthropic added the weekly session limits in August 2025, several months after the Max plan’s launch, as the firm intensified competition with OpenAI.

Anthropic’s later model release, Fable 5.1, referenced “addressing the feedback we’ve received from customers on price,” hinting at broader cost concerns.

Legal Proceedings and Company Response

The complaint was initially filed in July, withdrawn, and then refiled as an expanded class action.

Anthropic moved to dismiss the original case, contending that the session‑limit information was technically available to consumers who knew where to look.

The company’s brief stated that “Accessing this clarifying information … required nothing more than clicking hyper.”

Attorneys Kati Daffan and Monica Vaca, both former FTC staffers who served under Lina Khan, are representing the plaintiffs.

The lawsuit seeks to hold Anthropic accountable for what the plaintiffs describe as deceptive marketing practices that obscure the true cost of high‑usage access.

Industry observers note that the case highlights a growing tension between AI providers’ need to recoup steep operating expenses and customers’ expectations for transparent pricing.

If successful, the suit could prompt Anthropic and other AI firms to revise how usage limits are disclosed in subscription tiers.

For now, the case proceeds through the courts, with Anthropic maintaining that its disclosures comply with applicable regulations.

Stakeholders are watching the outcome as a potential bellwether for how AI companies will balance profitability with clear consumer communication.

Why This Matters: The lawsuit could force clearer pricing disclosures for AI subscription services, affecting how professionals budget for high‑volume model access.