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OpenAI's classifier to identify AI-written Text
Plus: Instagram founders launch new social media
Refactored.io
Good Evening. Meta’s stock is up 17% after better than expected revenue numbers for fourth quarter. Good day if you bought calls ;)
In today's edition:
- OpenAI’s tool to identify AI-written text 
Today's reading time is 2 minutes.
Main Thing
OpenAI releases classifier to identify AI-Written Text
Just one problem, it doesn’t work.

What: OpenAI released a new classifier to distinguish between text written by a human and text written by AI.
Sounds like something useful until you see the numbers -
- True positive rate is only 26% - that means if the text was written by an AI, the classifier correctly identified it as AI-Written only 26% of the times. 
- False positive rate is 9% - that means if the text was written by a human, the classifier incorrectly labeled it as AI-Written 9% of the times. 
Zoom Out: Several universities and school districts have already banned ChatGPT. Use of classifiers to detect AI-written text is almost guaranteed, similar to plagiarism-detection tools used today.
Imagine a classroom of 100 students, where each student completed their text assignments honestly without help of an AI. This classifier will still flag 9 of those submissions as AI-written. Guess who takes the blame?
An inaccurate classifier with high false positive rates will do more harm than good.
Big Picture
- Instagram co-founders are launching a new social-media called Artifact, for news content. The founders want to use TikTok style algorithm to recommend news articles 
- DOJ is investigating Tesla's AutoPilot to find if the Tesla’s design and capability claims gave drivers a false sense of security. DOJ is looking into data from over 830,000 teslas equipped with autopilot. 
Quick Links
- Another crypto ponzi scheme? Celcius used new customer funds to pay for withdrawals. 
- OpenAI launches a premium version of ChatGPT for $20/month. 
- Spotify now has 200M paid subscribers, but is not profitable yet. 
- Delta starts free wi-fi services in the US. 
- Paypal to layoff 2,000 employees in coming weeks.