Anthropic sued over Claude Max usage limits

A new proposed class action says Anthropic sold Claude Max 5x and Max 20x as higher-usage consumer plans, then delivered less usage than those names implied. The case was filed in the Northern District of California on June 14, 2026; this is an allegation stage, not a court finding. 1 2

Karl Kahn sued Anthropic PBC over the marketing of Claude Max 5x and Max 20x, asking for class-action treatment on behalf of U.S. consumers who bought or upgraded to those plans since April 9, 2025. The complaint seeks damages, restitution, injunctive relief and fees. 2

The complaint points to Anthropic emails that allegedly described weekly Claude Code usage ranges: Pro users could expect 40-80 Sonnet 4 hours, Max 5x users 140-280 Sonnet 4 hours, and Max 20x users 240-480 Sonnet 4 hours. The plaintiff argues that works out to about 3.5x usage for Max 5x and 6x for Max 20x, not 5x and 20x. 2

The suit puts consumer AI subscription limits under legal scrutiny: the complaint says the amount in controversy exceeds $5 million, while Anthropic's own help page currently says Max 5x costs $100/month, Max 20x costs $200/month, and usage may be limited by session, weekly, monthly, model, or feature caps. 2 3

WSJ first reported the lawsuit Monday morning and said Anthropic declined to comment; CNET later confirmed it had not received an immediate response from Anthropic. 4 5