Speaking of Cursor, we use cursor's agent nowadays more than its IDE. But then why should a company pay for Cursor instead of just signing deals with the top mo

Speaking of Cursor, we use cursor's agent nowadays more than its IDE. But then why should a company pay for Cursor instead of just signing deals with the top model providers and then using things like OpenCode or their own coding agent? That will be more cost efficient as the company won't need to pay for the markup per token added by Cursor?