StealthGPT

An entry in the Humanizer Wiki directory of AI humanizers.

Overview

StealthGPT positions itself squarely on evasion rather than polish. Alongside its humanizer, it ships a “stealth” generator that produces content designed from the start to avoid AI detectors, rather than rewriting existing text after the fact.

Performance against detectors

In our runs, StealthGPT was consistently among the better performers at pushing GPTZero and Originality.ai scores toward “human.” The trade-off shows up in readability: at the most aggressive intensity, sentences occasionally became stilted or subtly off in meaning. Dial the intensity down and quality recovers, at some cost to evasion: the fundamental tension every tool in this category faces (see our research).

Pricing

StealthGPT is subscription-based, with flat-rate tiers capped by requests-per-day and words-per-request (Pro ~$30/mo, Essential ~$34.50, Business ~$100.50, Enterprise ~$500) rather than a single word meter, and no substantial free tier. Some reviews still cite a low ~$14.99/mo plan; confirm current pricing on the site.

Summary

StealthGPT prioritizes evasion over polish, and outputs often benefit from proofreading. Tools like Undetectable AI trade some evasion for more readable output.

Detector effectiveness

How StealthGPT has fared against each detector we track, with the date last tested. See the full effectiveness matrix.