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Implementation of DetectGPT in Pytorch could be found here: https://github.com/BurhanUlTayyab/DetectGPT

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GPTZero

GPTZero is an AI model with some mathematical formulation to determine if a particular text fed to it is written by AI or a human being.

The motivation for it

Recently, GPTZero gotten a lot of hype/traction from media to be able to determine whether a set of sentences are generated from ChatGPT. It was indeed a great initative for Education Institutes. However, the implementation is closed-source. We tried to construct identical solutioning and voila!! 🎉 our implementation gets the exact same results mostly lol. 😂 😂 😂

Implementation video

GPTZero Implementation

Installation

pip install -r requirements.txt

Usage

Using Python function

python3 infer.py

example

from model import GPT2PPL
model = GPT2PPL()
sentence = "your text here"
model(sentence)

Using Python input

python3 local_infer.py

example

Please enter your sentence: (Press Enter twice to start processing)
Hello World.
My name is mike.
(empty line)

Note

Our implementation produces 100% same results as gptzero.me. We've compared extensively on a large corpus of text to compare our values with them, and surprisingly got the same results.

Acknowledgement

  1. This repository is built based on the hugging face https://huggingface.co/docs/transformers/perplexity

  2. Liu, Yinhan, et al. "Roberta: A robustly optimized bert pretraining approach." arXiv preprint arXiv:1907.11692 (2019).