IMPLICATOR
A proposed class action says the $200 Max 20x plan delivers a fraction of its advertised usage, as Anthropic pauses a separate Agent SDK billing change.
A Claude subscriber has sued Anthropic over the usage limits on its Max plans, alleging in a proposed class action that the company's two most expensive tiers deliver far less use than it advertises. Karl Khan, a Washington, D.C. resident, filed the complaint last week in the U.S. District Court for the Northern District of California, The Wall Street Journal reported. The suit says Anthropic's $200-a-month Max 20x plan provides only six to eight times the usage of its Pro tier, not the 20 times its marketing implies, and seeks class status for U.S. customers who bought a Max plan since April 2025.
Key Takeaways
- A proposed class action filed last week in the Northern District of California alleges Anthropic's Claude Max plans deliver far less usage than advertised, with the $200 Max 20x said to provide six to eight times Pro instead of 20 times.
- Plaintiff Karl Khan says he burned as much as a fifth of his weekly allowance in one five-hour coding session; the suit calls Anthropic's usage disclosures a black box and seeks more than $5 million for Max buyers since April 2025.
- On June 15, Anthropic separately paused a plan to bill Claude Agent SDK usage at API rates, telling subscribers that for now nothing has changed.
- Reddit's r/ClaudeAI usage-limits megathread shows months of complaints, with users reporting that Opus drains five-hour and weekly limits sometimes after a single prompt.
AI-generated summary, reviewed by an editor. More on our AI guidelines.
Khan upgraded to Max 20x in April after using Claude first for personal tasks and then for coding, according to the filing as described by CNET and Engadget. He found himself burning through as much as a fifth of his weekly allowance in a single five-hour coding session. The complaint describes Anthropic's usage disclosures as "a black box, without any meaningful description of how usage is calculated," and argues the company never defines what counts as a single session. Anthropic declined to comment.
Anthropic sells three consumer tiers. Pro costs between $17 and $20 a month and promises "at least five times the usage per session compared to our free service." The Max 5x and Max 20x plans, introduced in April 2025 at $100 and $200 a month, advertise up to five and 20 times the usage of Pro. The complaint puts the real figures at about three and a half times Pro for Max 5x and six to eight times for Max 20x, and says many subscribers have accused the company of a "bait and switch." It cites a popular Reddit thread in which one poster called the premium plan "extremely misleading." The amount in controversy exceeds $5 million, the filing states.
That thread is the r/ClaudeAI usage-limits megathread, a running tally of subscriber complaints the moderators call the highest-traffic post on the forum. On June 18, dozens of users reported their weekly usage jumping to 100 percent within minutes without corresponding work, some watching the figure reset hours later. Many of the complaints single out Opus, which subscribers say drains their five-hour and weekly limits far faster than the cheaper Sonnet, in some cases after a single prompt. (Disclosure: Implicator.ai uses Claude Code with Opus regularly and has formed the same impression, that the newer model offers more follow-up edits and workflow suggestions that add to token use. It has no measurements to support that impression and no basis to attribute any such pattern to deliberate design.) Those complaints predate the lawsuit by two months. In April, Anthropic acknowledged that people were "hitting usage limits in Claude Code way faster than expected" and called it the team's top priority, DevClass reported at the time; an Anthropic engineer, Thariq Shihipar, said a peak-hour quota cut would affect about 7 percent of users.
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The complaints continued after Anthropic added capacity. In May, the company said a compute deal with SpaceX let it double Claude Code's five-hour rate limits for Pro, Max, Team, and Enterprise subscribers.
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The lawsuit landed the same week Anthropic reversed a separate billing change. On Monday, June 15, the day a new pricing scheme for its Claude Agent SDK was set to take effect, the company paused it, updating its billing page to say it was "pausing the changes to Claude Agent SDK usage described below" and that "for now, nothing has changed." Announced on May 13, the plan would have billed usage from the SDK and the programmatic "claude -p" command at Anthropic's API rates, with subscribers receiving a monthly credit equal to their subscription price, separating that traffic from standard chat and CLI use.
The reprieve matters because subscriptions remain far cheaper than metered API access for heavy users. One developer analysis cited by Ars Technica found that Claude Opus subscribers start saving money after two to three messages a day; its author, Matthew Diakonov, wrote that a developer using Opus as a primary coding assistant "will blow past breakeven in the first week." The developers of the Zed editor had warned that the SDK change would be "a major cost increase" for heavy agent users. Anthropic's head of Claude Code, Boris Cherny, said in April that the company's "subscriptions weren't built for the usage patterns of these third-party tools," such as the agent harness OpenClaw.
Anthropic has not set a new date for the SDK pricing change and says it is "working to update the plan." The proposed class covers Max subscribers going back to April 2025. The reversal came weeks after Microsoft moved GitHub Copilot to token-based pricing, and as Anthropic prepares a possible public offering, having filed confidential paperwork with the Securities and Exchange Commission.
Frequently Asked Questions
What does the lawsuit against Anthropic allege?
The proposed class action, filed by Washington, D.C. resident Karl Khan in the Northern District of California, alleges Anthropic's Claude Max 5x and Max 20x plans deliver far less usage than advertised. It claims the $200-a-month Max 20x provides only six to eight times Pro's usage, not 20 times, and that Max 5x delivers about three and a half times Pro instead of five.
How much do Claude's plans cost?
Claude Pro costs between $17 and $20 a month. Max 5x is $100 a month and Max 20x is $200, both introduced in April 2025. Anthropic advertises the Max tiers as offering up to five and 20 times the usage of Pro, the figures the lawsuit disputes.
What changed with Claude Agent SDK billing?
Anthropic had planned to bill Claude Agent SDK usage, including the claude -p command and third-party apps, at its API rates starting June 15, with a monthly credit equal to the subscription price. On June 15 it paused the change, saying for now nothing has changed and that it is working to update the plan.
Why do users say Opus burns through limits so fast?
Subscribers on Reddit report that Opus, the pricier model, drains both the five-hour session limit and the weekly cap far faster than Sonnet, sometimes after a single prompt. Anthropic acknowledged in April that people were hitting Claude Code limits way faster than expected and called it the team's top priority.
AI-generated summary, reviewed by an editor. More on our AI guidelines.
Marcus Schuler
Editor-in-Chief and founder of Implicator.ai. Former ARD correspondent and senior broadcast journalist with 10+ years covering tech. Writes daily briefings on policy and market developments. Based in San Francisco. E-mail: editor@implicator.ai
