I'm hitting input token limit. Using Claude Max Subscription. Is there a method to "/clear" context? Or some other way to minimize / reset input tokens?

API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"input length and max_tokens exceed context limit: 196778 + 21333 > 200000, decrease input length or max_tokens and try again"},"request_id":"req_011CSUSAvG3cTgFStKLtDKp8"}