I’m trying to figure out why a long Claude conversation can become difficult to continue even when the context window seems large enough. Are the conversation’s context capacity and the account’s usage limits separate constraints, and how can you tell which one you’ve run into?

If you’ve compared plans or noticed different behavior between a fresh chat and a long-running one, what signs helped you understand the limit? I’m not looking for a workaround so much as a clearer mental model before I reorganize a few ongoing project chats.