Does the Max plan have any usage limits?
Yes. The Max plan offers substantially higher usage compared to our Pro plan. The Max plan is available in two tiers, offering flexible usage levels that grow with you:
Expanded Usage: 5x more usage than Pro | Maximum Flexibility: 20x more usage than Pro |
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The number of messages you can send will vary based on length of message, including the length of files you attach, and length of current conversation. Your message limit will reset every 5 hours. We call these 5-hour segments a “session” and they start with your first message to Claude. If your conversations are relatively short, with the Max plan at 5x more usage, you can expect to send at least 225 messages every 5 hours, and with the Max plan at 20x more usage, at least 900 messages every 5 hours, often more depending on message length, conversation length, and Claude's current capacity. We will provide a warning when you have a limited number of messages remaining.
Please note that if you exceed 50 sessions per month, we may limit your access to Claude. Anthropic reserves the right to limit your access to Claude during periods of high traffic.
Refer to our Usage Limit Best Practices to use your Max capacity efficiently.
How are “Sessions” defined?
A "session" starts with your first message to Claude and lasts for 5 hours. Any messages you send within that 5-hour window count as part of the same session, not as separate sessions. If you send one message now and come back 4 hours later to continue the conversation (in the same chat or a different one), that's still just one session.
The session counter only resets after the 5-hour period from when your first message began. When you start a new conversation after that 5-hour window, that begins a new session.