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AI Undetect vs Humanize AI

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. AI Undetect starts at $5, Humanize AI at $14. Both have a free tier. Both ship a public API.

AI UndetectRewrites AI-drafted text to read as human and pass detector checks, with a built-in multi-detector scanHumanize AIRewrites AI-generated drafts to read as human writing

Side by side

FactAI UndetectHumanize AI
CategoryAI Detection & HumanizersAI Detection & Humanizers
Pricing modelFreemiumFreemium
Starts at$5 month$14 month
Public APIYesYes
PlatformsWeb, APIWeb, API
Company—Paloma Digital LLC
Last verifiedSep 6, 2026Sep 6, 2026

What our research says

AI Undetect

It bundles rewriting and detector checks into one loop, which is the workflow people actually follow, and entry pricing is low. The catch is the category itself: detection engines retrain constantly, so passing today proves nothing about next month, and using it on academic work can breach integrity policies.

Pros

  • Free allowance to test output quality before paying
  • Detector panel shows results across multiple engines at once
  • Low entry price on annual billing
  • Rewrite API is documented for integration work

Cons

  • Effectiveness is a moving target as detectors retrain
  • The company behind the site is not identified anywhere on it
  • Word caps on lower tiers are easy to exhaust

Humanize AI

Treat this as a rewrite-and-check bundle, not as a guaranteed way to beat detectors, because detector behaviour shifts constantly and no vendor controls it. For graded academic work the consequences land on you, not the tool.

Pros

  • Bundles detector, plagiarism and grammar tools instead of charging for each
  • API included from the $14 tier, uncommon in this category
  • Side-by-side comparison makes each rewrite reviewable
  • Free tier is large enough to judge output quality before paying

Cons

  • Free plan caps every individual check at 300 words
  • Humanizer and AI-writer budgets are separate, so one exhausts first
  • Rewrites tend to flatten voice and can introduce awkward phrasing
  • Effectiveness against detectors is unstable and impossible to verify

Which one fits

Choose AI Undetect if you need

  • SEO and affiliate writers reworking AI drafts before publishing
  • Non-native English speakers smoothing machine-assisted prose
  • Teams that want rewrite plus detector check in one place

Choose Humanize AI if you need

  • Agencies cleaning up bulk AI drafts before client delivery
  • Non-native writers smoothing machine-translated copy
  • Teams wanting humanizer, detector and plagiarism checks on one invoice

More comparisons

All AI Undetect alternatives →All Humanize AI alternatives →Browse all AI Detection & Humanizers →