GPTZero

GPTZero provides AI-text detection, writing-process evidence, authorship and authenticity analysis, plagiarism-related review, hallucination detection, education workflows, and developer APIs. Users must treat probability scores as signals rather than proof, inspect source and writing history, test false positives, protect submitted text, allow explanation and appeal, and never punish a person solely from an automated result.

Begin with authorized, non-sensitive inputs and a limited test. Configure privacy, access, quality, export, disclosure, evaluation, consent, moderation, security, and spending controls; compare results with authoritative sources and real requirements; correct errors; and keep a responsible person in control before publication, deployment, grading, purchases, automation, or consequential changes.

Free access and optional trials are available. Individual paid access has been listed from $10 per month, while current account, professional, team, institution, and API pricing varies by billing cycle, seats, words, and contract terms.

AI output or detection scores may be inaccurate, generic, biased, incomplete, stale, unsafe, or misleading. Review privacy, retention, training, copyright, consent, security, renewals, refunds, and commercial rights, and require qualified human review for education, finance, communications, code, or other high-impact work.