Judge lets Claude Max "5x/20x more usage" lawsuit proceed: weekly limits aren't the advertised multipliers

A federal magistrate in San Francisco has let the core of a proposed class action against Anthropic proceed: Karl Kahn and Solomon Smith say Claude Max's "5x or 20x more usage than Pro" pitch is misleading once you look past the five-hour session window. In an order dated November 6, U.S. Magistrate Judge Alex G. Tse wrote that "[t]he advertising in question is plausibly misleading," denied Anthropic's motion to dismiss on several claims, and dismissed others with leave to amend.

This is the same gap Anthropic itself acknowledged when it renamed Max 20x to Ultra and dropped the five-hour limit for verified Ultra accounts on October 30. Product lead Mike Overell had said weekly limits on that top plan were always 10× Pro, not 20×, and apologized for the naming. The lawsuit is about what the sales pages still said before (and around) that rename.

What the complaint says the multipliers actually buy

Paid Claude plans stack two ceilings: a rolling five-hour session allowance and a weekly allowance. Per the complaint as summarized in the order, Max 5x ($100/month) and Max 20x ($200/month) get 5× or 20× Pro's usage per five-hour session, but their weekly multipliers are lower. The plaintiffs' table for Claude Sonnet 4 puts Max 5x at about 3.5× Pro per week and Max 20x at about 6×. So a Max 20x user who burns hard in each five-hour window can exhaust the week faster than the "20x" label suggests — one alleged complaint in the order: "I am only on my third day of the week[,] and I have already used 50% of my weekly allowance on the 20x Max plan."

Tse's point on the pleadings is about what a reasonable buyer of a monthly subscription would think "5x or 20x more usage than Pro" means. Anthropic argued that help-center pages two hyperlinks away from the sales funnel say the multiplier is per session. Tse treated that disclosure as outside the order flow — comparable to a shampoo bottle's back label that courts often refuse to use to kill a false-advertising claim at the pleading stage — and said an asterisk reading only "Usage limits apply" does not say "per session."

What survives, what doesn't

Going forward for now:

• Plaintiff Smith's claim under California's Consumers Legal Remedies Act (CLRA)
• Negligent misrepresentation
• Breach of contract (Anthropic's Terms point subscription details to the "order process," which the court says can include the sales pages)

Dismissed with leave to amend by December 2, 2026:

• Plaintiff Kahn's CLRA claim (he didn't plead enough personal vs commercial use)
• UCL and FAL claims (no standing for the injunctive/restitution theories as pled)
• Breach of the implied covenant of good faith (Terms allow capacity changes; Tse: "Anthropic didn't tighten usage limits as a bait-and-switch")

Tse also held Claude Code is plausibly a "service" under the CLRA when used non-commercially — antivirus and reCAPTCHA cases Anthropic cited don't fit an agentic coding tool that keeps rewriting your repo.

Nothing has been proven. No class is certified. Anthropic had not commented in Courthouse News's write-up. Ultra's removal of the five-hour session limit for verified accounts changes one of the two ceilings the case turns on; every plan still has a weekly cap, which is what the plaintiffs say the "20x" pitch never matched.