Top free tools to check research papers, thesis, assignments, documentation, and draft for AI content detection.

1. GPT-ZERO

GPTZero 6 is designed by Edward Tian, a Princeton senior, to detect writing generated by ChatGPT. The creator has seen that the technology was used by students to cheat on assignments, so he came up with the safeguard.

The web-based app is quite simple. You can either paste your text or load the pdf, docx, and txt files. With a single click on the “GET RESULTS’’ button, you can find the summary, average Perplexity, and Burstiness score. Furthermore, it will highlight the text that is likely to be written by AI.

Note: in case of content written entirely by AI, you won’t see highlight text.

You can also try Streamlit demo of the app.

2. OpenAI GPT2 Output Detector

OpenAI GPT2 Output Detector 1 is developed by OpenAI and hosted on HuggingFace for users to freely check the content validity. It can detect text generated by ChatGPT, GPT3, and GPT2. The application is using the GPT-2 output detector model based on the Transformers.

To check the content validity, just copy and paste the text, and it will automatically show you the Real/Fake percentage.

I have been using it for a few days, and I think it is fairly accurate in detecting all kinds of AI text generation.

3. Hello-SimpleAI ChatGPT Detector

Hello-SimpleAI ChatGPT Detector consists of three versions to detect text generated with ChatGPT.

1. QA version: requires both questions and answers to check if it was generated by ChatGPT. On the backend, it is using a PLM-based classifier.
2. Sinlge-text version: required long text to detect text generated by ChatGPT by using PLM-based classifiers.
3. Linguistic version: detects ChatGPT based on linguistic features.

In my opinion, the most accurate is the Linguistic version. You need to provide the text and click on the predict button to see the results. The application will show results from two different models GLTR and PPL. You can read more about it on the chatgpt-comparison-detection project.

4. Contentatscale AI Content Detector

Contentatscale AI Content Detector 1 is the tool that I frequently use for quality assessment. It is fast, simple, and accurate. The AI Content Detector allows users to receive the Human Content score by pasting the text.

Note: to get accurate results try to paste a small chunk of the text (150-200 words).

5. Writers AI Content Detector

Writers AI Content Detector 3 is similar to Contentatscale. It requires either the URL of the page or text to calculate the “Human-Generated Content” score. It is fast and fairly accurate.

Note: you have a limitation of 1500 characters, so try to paste a small chunk of text to generate the score.

Happy learning!