Hand-written tweet flagged as AI as user cites <1/1000 measured FP rate

ctjlewis · x · 2026-10-30

After @yoshispeninsula complained that a tweet he wrote by hand — complete with unedited ESL phrasing — was flagged as AI-generated, ctjlewis pushed back with data: he personally measured the false-positive rate on Claude Max and other accounts' tweets and found it in line with previously published figures, under 1 in 1000. The exchange highlights the recurring tension of AI detection tools: even a sub-0.1% FP rate still means real people get wrongly accused.

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