Undetectable AI
AI detector and humanizer that rewrites AI text to read human.
About
Undetectable AI (undetectable.ai) pairs an AI content detector with a humanizer in a detect, rewrite, and verify loop. Paste AI-generated text, choose a humanize level (Basic, Stealth, or Undetectable) and a use-case preset, and it rewrites sentence structure, tone, and vocabulary to lower detection scores. It was named a top AI detector by Forbes and claims 23+ million users across 50+ languages, with plans starting around $5 per month on annual billing.
Independent testing is mixed: it performs well against basic detectors but inconsistently against advanced ones like Turnitin and Originality.ai, and reviewers report billing confusion around trial conversions. It also offers a money-back guarantee if any detector flags the output. Anyone using humanizers for academic work should check their institution's policies first.
What it can do
- Built-in AI detector with multi-detector feedback
- Humanizer with three intensity levels
- Use-case presets for essays, articles, and marketing
- Multi-language support (50+ languages)
- API access for programmatic use
Setup
Sign up at undetectable.ai; paste text and choose a humanize level.
Prerequisites
An account; paid plan for full word limits.
Use cases
Works with
Trust score — 7/10
Scored 7/10 (metrics tier, metrics-v1). Evidence: Verified via vendor site/docs/GitHub and reputable coverage, wave 92; Trending score 74/100 from researcher assessment.
Sources
Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.