Prices and weekly limits remain the same, but the new name raises the question of how many times "20x" actually means for the Pro package.

On October 30, Anthropic announced the renaming of Claude's two premium packages for individuals. Max 5x becomes Max, keeping the level of 100 USD per month, equivalent to about 2.6 million VND. Max 20x becomes Ultra, remaining at 200 USD, equivalent to about 5.3 million VND. The currently registered person will be automatically transferred to the new name, without any action required.

The more significant change lies in the way the limit is calculated. Previously, users of Claude's premium plan were subject to two layers of limits: a 5-hour "session" that had to be renewed upon completion, and a weekly limit. With Ultra, the first layer is dropped for verified accounts. Users are only charged weekly, at 10 times the Pro package (Pro package costs 20 USD per month, more than 520,000 VND). This change is most useful for people running Claude Code or giving Claude long tasks, which are easily interrupted midway when the 5-hour session runs out.

Ultra is not an "unlimited" plan. Anthropic said the weekly limit still applies to all models, there is an additional weekly limit for the Fable model line, and the company may set additional limits to ensure fairness among users. Ultra's weekly limit remains the same as Max 20x.

"Verified account" is determined by Anthropic at its sole discretion, based on factors such as account and payment history. Newly registered accounts are still temporarily limited until verified, and the company will automatically remove them. Verifying your phone number at checkout is another step that does not remove this limit. To check, users go to Settings > Usage: if you don't see the "Current session" bar, the account has been verified. The limit removal is rolled out in batches, starting October 30 for the majority of existing subscribers, and users will receive an email when the limit is lifted.

Anthropic explains the reason for the name change quite specifically. When the highest package was released in April 2025, Claude only had a limit of 5 hours, at 20 times the Pro package, so the package was called Max 20x. Then the company added a weekly limit and set it at 10 times the Pro package, while the 5-hour limit remained 20 times. Now that the 5-hour limit is removed, the remaining number on the $200 plan is 10 times per week, so the name "20x" no longer accurately describes what users get.

This naming method has been questioned. On June 14, user Karl Kahn filed a request to recognize a class action lawsuit in federal court in Northern California. This application states that when including the weekly limit, Max 20x is only equivalent to about 6 to 8 times the Pro package instead of 20 times, while Max 5x is about 3.5 times instead of 5 times. Anthropic has described the "20x" multiplier for each 5-hour session, while the weekly limit is a separate limit. The lawsuit has not been recognized as a class action and there has been no verdict. There is currently no information indicating that the name change is related to this lawsuit.

According to the numbers published by Anthropic on the price page, the Pro package is 1 time, the Max package is 5 times and the Ultra package is 10 times the weekly limit, corresponding to prices of 20, 100 and 200 USD. In other words, each plan costs around $20 per "Pro week", and Ultra costs twice as much as Max for twice the weekly limit. This is different from the "4 times more" impression that the pair of names 5x and 20x once evoked.

These two layers of limitation are inherently at odds with each other. On October 22, research unit SemiAnalysis measured two Max 20x accounts on the same day, using the same model, and found one account had a 5-hour window about 19% larger but a weekly limit about 20% smaller. SemiAnalysis said that Anthropic seems to be testing user grouping. This is just an outside observation.

Changing the name also brought Claude closer to his opponent's calling. Google sells the AI ​​Ultra package in two tiers: 99.99 USD (about 2.6 million VND) for 5 times the limit and 199.99 USD (about 5.3 million VND) for 20 times the limit of AI Pro. OpenAI has ChatGPT Pro in three tiers of 100, 200 and 500 USD, and said that currently the Pro plans do not have a 5-hour limit in Codex and ChatGPT Work. Anthropic's removal of the 5-hour limit on the highest package goes in the same direction as OpenAI.

For existing users, there is no immediate need to do anything. Max users retain their benefits, while Ultra users will see the 5-hour limit fade away once their account is verified. Some legacy account screens may still display "20x Pro" during the transition period. Ultra is currently only sold on a monthly basis, the $200 rate applies to web subscriptions, but mobile app subscriptions may have different prices.