In his announcement, Best admitted that the AI detection tool is “not perfect,” but cited independent research that found Pangram’s software was 97.5% accurate in detecting fully generated AI text. The University of Maryland found that Pangram was 99.3% accurate in identifying “humanized AI-generated text,” which basically means a human has rewritten or paraphrased AI content. Substack writers who do not use AI are understandably concerned about being incorrectly labeled as AI-assisted authors. As a result, the risk of false positives is a significant issue. Substack said creators can scan the