Grammarly

QuillBot is an AI writing tool that rewrites or humanizes AI-generated text. In the cited video context, it is used to modify text before the text is tested by GPTZero.

An AI text humanizer from UndetectedGPT that transforms AI-generated text into writing described as natural and undetectable by AI detectors. The service claims to bypass detectors including GPTZero and Turnitin and offers free humanizing.

Clever AI Humanizer is described as a tool that humanizes test text before the text is evaluated by GPTZero. The available evidence does not specify its developer, interface, distribution, or implementation.

Turnitin is an academic integrity service that detects suspected AI-generated writing in student documents. The videos discuss false-positive results and the importance of preserving document drafts when using its detection results.

Markdown-based agent skill that rewrites AI-sounding text to read human-written without changing what it says — works with any agent that supports skills. Rewrites against the 35 patterns from Wikipedia's 'Signs of AI writing' (WikiProject AI Cleanup): a first pass free to restructure, then a check of the draft against those patterns and the original claims before rewriting what still sounds artificial. Its rules bar invented facts — names, numbers, dates and quotes must come from the source or the writer — and preserve a writer's personal style (or follow a provided sample). The skill shows its work: the first rewrite and a critique of what still sounds artificial precede the final version.