Undetectable AI (or Undetectable.ai) is an artificial intelligence content detection and modification software designed to identify and alter artificially generated text, such as that produced by large language models.

[1][2][3] Undetectable AI was developed by Bars Juhasz, a PhD student from Loughborough University, along with Christian Perry[4] [5] and Devan Leos.

It was publicly released in May 2023.

[6][7][8] Undetectable AI has been discussed in technology and news outlets such as TechTudo[9] and The Inquirer, and others such as Hollywood Life and OK!

[10][11][12][6] Several studies have examined Undetectable AI: Undetectable.ai uses adversarial techniques to modify AI-generated text aiming to make it appear as if a human wrote it.