GPTinf is an AI content humanizer and detector founded in February 2023 in Lviv, Ukraine, by Artur Zhdan. Zhdan built the first version after his own AI-assisted college application essays were flagged by detection software, and the company has since grown to a reported 25 million users across more than 70 countries; its parent entity incorporated in Estonia in March 2024.
Rather than using AI to rewrite AI-generated text, GPTinf runs a proprietary non-AI algorithm that targets the perplexity and burstiness patterns AI detectors are trained to flag, with eight rewrite modes to vary the output style. The platform pairs this with its own AI detector and a plagiarism checker so users can test text before and after rewriting.
It targets students, content marketers, and copywriters who need AI-assisted drafts to read as human-written, though its bypass-detection framing invites academic-integrity scrutiny in education settings. Paid plans start around $19 per month for the Lite tier, with a Pro tier at $79 per month for higher word volumes; the site allows 240 free words with no subscription required to try the tool first.
