Claude Max costs $100 per month and lets you send up to 5x the usual messages...

https://garrettwigp625.tearosediner.net/what-are-the-two-weekly-caps-on-claude-max-exactly

Claude Max costs $100 per month and lets you send up to 5x the usual messages in any rolling five-hour period, with peak boosts hitting 20x. But heads up: weekly caps don’t grow much, so if you plan heavy use, watch your limits closely