HumanGPT is a free AI humanizer that rewrites ChatGPT, Claude, Gemini, and Perplexity drafts into text that reads as fully human. It bypasses GPTZero, Turnitin, Originality.ai, Copyleaks, ZeroGPT, Crossplag, Sapling, and Winston AI with a 99.6% success rate, retested every week against a fresh 500-sample test set. Free tier: 300 words a day, no signup, no credit card. Pro ($19/month, or $9/month billed annually): 50,000 words a month, 8,000-word inputs, Brand Voice training, side-by-side compare, two-model second-opinion pass, searchable run history, REST API. Founder Edition ($199 one-time, capped at 100 seats ever): 150,000 words a month for life, 8,000-word inputs, premium model tier.
99.6% bench · tested weekly
