GPTinf

An entry in the Humanizer Wiki directory of AI humanizers.

Strengths

Free preview lets users humanize a limited amount without paying
A "Freeze Keywords" option preserves specified terms during rewriting
Multiple rewrite modes and a built-in detector included

Limitations

The "passes AI detection" pitch is a marketing claim, not a guarantee
Free preview is capped at roughly 240 words total
Best pricing requires an annual commitment

Overview

GPTinf is a web-based AI humanizer that paraphrases AI-generated text into output intended to read as human-written, with a built-in AI detector for checking results. A distinguishing feature is “Freeze Keywords,” which lets users lock specific terms so they survive the rewrite. It targets students, marketers and general users who want to convert AI drafts into more natural-sounding text.

Claims and pricing

GPTinf’s marketing states it “passes AI detection tools,” a claim we have not independently verified against detectors such as gptzero, originality-ai or turnitin; no humanizer can guarantee this. Confirmed pricing: a free preview allows up to about 120 words without signup and another 120 after creating an account (roughly 240 total). Paid tiers include Lite ($9.99/mo, 5,000 words), Pro ($24.99/mo, 25,000 words) and Unlimited ($59.99/mo), with the vendor advertising up to 50% off on annual billing.

Summary

GPTinf is a real, publicly available humanizer with transparent pricing and a distinctive keyword-freezing option. Its “passes AI detection” positioning is a vendor claim we have not independently confirmed. We record it here as unverified pending our own testing.