Fact · Voice and AI
OpenAI withdrew its AI text classifier on July 20, 2023, because of its low rate of accuracy.
Checked against its source on October 17, 2026
In the source's own words
“As of July 20, 2023, the AI classifier is no longer available due to its low rate of accuracy.”
New AI classifier for indicating AI-written text (OpenAI, January 31, 2023, with July 2023 update), Jan Hendrik Kirchner et al., OpenAI, 2023, Update note at the top of the post.
Open the original- What it measures
- OpenAI launched the classifier on January 31, 2023, as a tool to tell whether a piece of text was likely written by AI. The update note was added to the original post.
- What it does not show
- The withdrawal shows the company's own judgment of its tool. It does not show how other AI text detectors perform, and it says nothing about speech or dictated text.