AITurnitin

AITurnitin is an independent web tool for students and researchers who write in English. It estimates how likely an English text was written by AI, scoring the whole document and every sentence and highlighting the sentences that read most like AI, with a published false-positive rate of about 1% (details at https://aiturnitin.org/accuracy). Its academic polisher fixes grammar, wordiness and stock AI-style phrasing while keeping citations, numbers and acronyms unchanged. New accounts get 5,000 free credits one time; one-time credit packs cost $4.99, $9.99 or $19.99. Signing in is required to see results.