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I want to quickly tell whether a text was written by a human or by an AI (such as ChatGPT, GPT, LaMDA, BART, etc).

Ideally something that can be used online without installing anything, just with a textbox to paste the text I want to check.

Bonus if the detector:

  • is free to use.
  • does not need registration.
  • supports several generators, such as GPT and LaMDA.
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GPT-2 Output Detector Demo on HuggingFace allows users to either enter the text into the textbox directly or use it as an API. It is free to use and does not need registration.

This is an online demo of the GPT-2 output detector model, based on the 🤗/Transformers implementation of RoBERTa. Enter some text in the text box; the predicted probabilities will be displayed below. The results start to get reliable after around 50 tokens.

When entering the text directly into the textbox, it will show a graph on how fake (AI-generated) or real (human-generated) it is.

When using it as an API by adding a GET argument, like https://openai-openai-detector.hf.space/?This%20is%20a%20test, it will return a JSON message:

{"all_tokens": 4, "used_tokens": 4, "real_probability": 0.016693303361535072, "fake_probability": 0.9833067059516907}
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Simply go to this website and paste your text. It is created by OpenAI(creators of ChatGPT). Just paste the text and hit Ctrl+Enter. After processing it will show you results.

Website - https://platform.openai.com/ai-text-classifier

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    Note that this needs registration.
    – Andrew T.
    Feb 18, 2023 at 3:26
  • Not free to use, you pay by handing over your phone number.
    – Mast
    Feb 27, 2023 at 12:30

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