Currently, users have no way of knowing how much text they can enter. I suggest adding a visible character (or word) counter to the input field, similar to many other services. This would make it clear that users cannot, for example, paste a 10,000-word essay and receive an error like: “Error: your message is 20,000 tokens while the maximum input is 200 tokens.” Showing the input length in real time would greatly improve the user experience and provide a more intuitive way to understand input limits for users.