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Clever AI Humanizer vs WriteHuman

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. WriteHuman publishes a starting price ($12); Clever AI Humanizer does not. Both have a free tier. Only WriteHuman ships a public API.

Clever AI HumanizerFree rewriter for AI-generated text, up to 3,000 words a pass, in English and Spanish.WriteHumanRewrites AI-generated text to read as human and scores it against detector models

Side by side

FactClever AI HumanizerWriteHuman
CategoryAI Detection & HumanizersAI Detection & Humanizers
Pricing modelFreeFreemium
Starts at—$12 month
Public APINoYes
PlatformsWebWeb, Chrome Ext, iOS, Android, API
CompanyCleverFiles Inc.WriteHuman
Last verifiedSep 6, 2026Sep 6, 2026

What our research says

Clever AI Humanizer

A free humanizer with an actual named US company behind it, which puts it a step above the anonymous crowd in this category. The 3,000-word window and change highlighting make it practical for editing rather than blind pasting. Two languages only, and being free with no visible revenue means no promises about uptime or longevity.

Pros

  • Up to 3,000 words per request, larger than most free tiers allow
  • Highlights the changes it made instead of returning an opaque block
  • Three rewrite styles: Normal, Clear & Structured, Simple Formal
  • Named operator — CleverFiles Inc., New Castle, Delaware — with file upload and run history

Cons

  • English and Spanish only
  • No API, no browser extension, no mobile app
  • Free with no stated business model, so continuity is uncertain
  • Rewriting to defeat detectors remains a policy problem wherever detectors are used

WriteHuman

As humanizers go this one is unusually transparent about its own scoring, showing per-sentence detection probability instead of a single vague pass mark, and its surface area — extension, mobile apps, API, MCP — is wider than most rivals. The catch is what the tool is for: passing AI-detection checks breaches most academic integrity policies, and no vendor can guarantee any detector's verdict.

Pros

  • Sentence-level detection scores rather than a single opaque verdict
  • Chrome extension, iOS and Android apps, plus a documented API and MCP access
  • Free tier lets you judge output quality before paying
  • Annual billing cuts the effective monthly rate by roughly a third

Cons

  • Request counts and word caps are tight on the lower tiers
  • Detector outcomes are probabilistic and shift as detectors are retrained
  • Use is disallowed by most academic integrity policies

Which one fits

Choose Clever AI Humanizer if you need

  • Loosening up long machine drafts before you edit them yourself
  • Spanish-language as well as English rewriting
  • Seeing exactly which phrases were changed rather than getting an opaque rewrite

Choose WriteHuman if you need

  • Editing machine drafts into prose that sounds less uniform
  • Non-native writers smoothing generated text across 40-plus languages
  • Developers who want rewriting inside their own pipeline via the API

More comparisons

All Clever AI Humanizer alternatives →All WriteHuman alternatives →Browse all AI Detection & Humanizers →