Anthropic class action alleges Claude subscribers paid for degraded AI service

By Top Class Actions | August 5, 2026

Category: Fees

Close up image of Anthropic Official Webpage displaying the pricing plans for Claude Subscription, Claude Free, Claude Pro and Claude Max Plans, Subscription Service — (Photo Credit: Nwz/Shutterstock)

Anthropic class action lawsuit overview:

Who: Plaintiff Isabelo Pascual filed a class action lawsuit against Anthropic PBC.
Why: Pascual alleges Anthropic reduced paid subscribers’ access to Claude while continuing to charge full subscription prices.
Where: The class action lawsuit was filed in California federal court.

A California consumer filed a class action lawsuit against Anthropic PBC, alleging the artificial intelligence company improperly retained subscription fees after reducing the value of its paid Claude Pro and Max plans through backend changes and service issues.

According to the complaint, Anthropic implemented changes beginning in March that allegedly caused subscribers’ usage limits to deplete more quickly and degraded the performance of Claude Code, the company’s AI coding assistant included with paid subscriptions.

Plaintiff Isabelo Pascual claims subscribers received materially diminished services without refunds or credits for the affected periods.

According to the lawsuit, Anthropic charges about $20 per month for Claude Pro and $100 or $200 per month for Claude Max, advertising the paid plans as providing higher usage limits, priority access and extra features than the free version of Claude.

The complaint alleges Anthropic announced on March 26 that Pro and Max subscribers would move through their five-hour session limits more quickly during weekday peak hours, even though weekly limits would remain the same.

The Anthropic class action claims the policy reduced when and how subscribers could use the service while they continued paying the same monthly subscription fees.

Anthropic allegedly reduced Claude Code’s reasoning capability

Pascual further alleges Anthropic later acknowledged separate backend issues affecting Claude Code between March and April 2026, explaining that backend changes reduced the tool’s reasoning capability, caused it to lose context, repeat tasks and generate cache misses, and caused users to exhaust their usage allowances more quickly than expected.

Although Anthropic later reset subscribers’ usage limits and announced on May 6 that it would increase usage limits and eliminate the peak-hour reduction, the lawsuit alleges the changes left subscribers uncompensated for the earlier period of allegedly degraded service.

The Anthropic class action lawsuit claims the company did not provide refunds or account-specific calculations showing whether subscribers recovered the usage they had lost.

Pascual says he purchased a Claude Pro subscription in 2025 after reviewing Anthropic’s descriptions of the plan’s benefits. He alleges that before the challenged changes, his Claude and Claude Code sessions were generally consistent but later began experiencing faster usage depletion, lower-quality results and interruptions.

The proposed class action lawsuit seeks to represent a nationwide class of consumers who purchased Claude Pro, Max 5x or Max 20x subscriptions directly from Anthropic and used them between March 4 and May 6, 2026, along with a California subclass.

The lawsuit brings claims for alleged violations of California’s Unfair Competition Law, False Advertising Law and Consumers Legal Remedies Act as well as breach of contract, breach of the implied covenant of good faith and fair dealing and unjust enrichment.

The plaintiff requests a jury trial and seeks damages, restitution, injunctive relief and other relief the court considers appropriate.

Meanwhile, a federal judge recently granted final approval to a $1.5 billion class action settlement resolving claims that Anthropic used pirated books to train its Claude AI chatbot.

What do you think about these claims made against Anthropic? Let us know in the comments.

Pascual is represented by Matthew W. Ruan, Jonathan M. Jagher and Nicholas R. Lange of Justice Jagher London & Millen LLC and Katrina Carroll of Carroll Shamberg LLC.

The Anthropic class action lawsuit is Pascual v. Anthropic PBC, Case No. 3:26-cv-07699, in the U.S. District Court for the Northern District of California.