There are several ways to check if a proposal has been written by AI or humans. One way is to use AI detection tools such as those provided by Free AI Detector, ChatGPT Detector, and Turnitin. These tools measure specific characteristics of the text, such as sentence structure and length, word choice, and predictability, to determine if it was generated by an AI writing tool like ChatGPT. Another way is to ask AI itself, as it can detect if a text was written by AI or not. Additionally, experts suggest that AI-generated text can be identified by its predictability and lack of randomness, as well as the use of more common words and phrases.
It's important to note that AI-generated text can be very convincing and sometimes it's hard to distinguish it from human-written text. However, there are certain characteristics that can give it away. For example, AI-generated text may use more formal or stilted language, and may lack the nuance and subtlety of human language. Additionally, AI-generated text may be more predictable and less random than human-written text.
It's also worth mentioning that AI-generated text can be used for a variety of purposes, including writing articles, social media posts, and even entire books. It's becoming increasingly important to be able to detect AI-generated text, especially in academic and professional settings, to ensure the authenticity and credibility of the content.