Meet the Apex Engines
Our humanizer technology is built around four specialized engines, each designed for a specific use case. Here's how they work.
Apex 1 — Stealth
The core stealth humanizer. Rewrites AI-generated text to pass major detectors (GPTZero, Originality, Turnitin) while preserving meaning and academic tone. This is the default engine for most users.
**Best for:** General humanization, academic papers, blog posts
Apex Mini — Detection Control
A lightweight engine that targets specific detector fingerprints with minimal text alteration. Best for quick pass/fail checks where you want to preserve as much of the original text as possible.
**Best for:** Quick checks, preserving original phrasing
Apex Premier — Advanced
Premium multi-pass humanizer with deep paraphrasing, sentence restructuring, and vocabulary diversification. Produces the highest quality output but takes longer.
**Best for:** Important documents, publications, high-stakes content
Apex Fast — AntiGPTZero
Specialized engine tuned against GPTZero detection. Strips AI marker patterns, varies sentence rhythm, and adds natural imperfections.
**Best for:** Content that needs to pass GPTZero specifically