It is possible to know if a text was written by ChatGPT or other artificial intelligence (AI) chatbots with the help of online tools. As robots manage to write compositions with apparent coherence and answer questions from simple commands, it is not difficult to imagine that some people use them in college tests or selection processes.

In order to identify them, teachers and employers can use software such as ZeroGPT AI detector. Below are multiple ways to know if a text was written by chatbots with AI.

  1. AI Text Classifier:

OpenAI, the company responsible for ChatGPT, launched, in early 2023, a tool capable of analyzing whether a text was written by chatbots with artificial intelligence. This is the AI Text Classifier – a popular AI detector free tool that, although still in the testing phase, can be used for free on the company's website.

  1. ZeroGPT:

Another possibility to check if an essay was written with ChatGPT is ZeroGPT. The AI writing detector tool indicates the likelihood that the text was developed by an AI, highlighting phrases possibly created by robots.

The site's differential is the possibility of uploading a file to the platform and analyzing it without having to copy and paste the text — which can be an interesting resource for teachers, for example.

  1. Content Scale AI:

Content Scale AI is another tool that shows an "artificial intelligence score" — the higher it is, the more likely the content was developed by a chatbot. The platform explains, however, that a text with an 85% score of "human content", for example, is not 15% generated by AI. In fact, the result indicates that the system is 85% confident that the user-provided content was created by humans.

The AI text classifier tool still appears to be a little limited and, to be more precise, it needs an abundant amount of data, especially when it is necessary to verify content on small niches and in certain languages. In our theses, therefore, it was not very effective.

  1. Undetectable AI:

The Undetectable AI tool also serves as a detector of texts written by artificial intelligence but was initially created to humanize content generated by robots. To find out if an essay was written with AI, users must paste the content they want to analyze and hit the "Check for AI" button. Afterward, the AI detectors will light up red or green — red for text produced by robots and green for a text that "passed the test".