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Humanio AI vs StealthGPT

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. Humanio AI publishes a starting price ($6.99); StealthGPT does not. Only StealthGPT ships a public API.

Humanio AIRewrites AI drafts to read as human prose, with a built-in detector check, sold by weekly word allowance.StealthGPTRewrites AI-generated text to slip past AI detectors

Side by side

FactHumanio AIStealthGPT
CategoryAI Detection & HumanizersAI Detection & Humanizers
Pricing modelPaidPaid
Starts at$6.99 week—
Public APINoYes
PlatformsWebWeb, API, Chrome Ext
CompanyHumanio AIXYZ AI Inc.
Launched—2023
Last verifiedSep 6, 2026Sep 6, 2026

What our research says

Humanio AI

A competent humanizer with the sensible addition of a detector in the same subscription, so you are not paying two vendors to check each other. The weekly billing option genuinely suits students who need it for one assignment. Be clear-eyed about what it is for, though: the site's own navigation is a list of detectors to bypass, including Turnitin, which puts it on the wrong side of most academic integrity policies.

Pros

  • Includes an AI detector alongside the humanizer on every tier
  • Weekly, monthly, and yearly billing cycles, including a genuine sub-$10 weekly entry
  • Adjustable rewrite intensity from light touch to full rewrite
  • Accepts PDF uploads and states it preserves keywords for SEO work

Cons

  • No free tier - the pricing page only offers paid plans
  • Detector runs consume the same word allowance as rewrites, so checking costs you twice
  • No company entity, address, or country published anywhere on the site
  • The advertised iOS app and Chrome extension are both marked as not yet available

StealthGPT

The only thing here that competitors do not match is the developer surface — REST API, MCP server and n8n node — so this is the humanizer you pick if you are automating a content pipeline, not the one you pick to write an essay. Everything it sells is a bet on an arms race the detector vendors are also funding.

Pros

  • Genuine developer stack — documented API reference plus an MCP server, which rivals lack
  • Bundled detector lets you check before and after in one place
  • Chrome extension humanizes directly in any text field
  • Enterprise tier handles up to 20,000 words per run

Cons

  • Pricing page is behind a Vercel bot check, so prices cannot be compared without signing up
  • Daily request caps sit behind plans that market themselves as unlimited
  • Rewriting reliably flattens nuance and introduces awkward phrasing that needs an editing pass
  • Positioning around beating Turnitin invites institutional and reputational risk

Which one fits

Choose Humanio AI if you need

  • Marketers smoothing AI drafts before publishing
  • One-off deadline weeks where a weekly plan beats a monthly commitment
  • Writers who want keyword-preserving rewrites for SEO copy

Choose StealthGPT if you need

  • Content operations running bulk rewriting through an API or n8n workflow
  • Non-native English writers softening obviously templated LLM prose
  • Agencies that need humanizing inside an existing WordPress or Zapier stack

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