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StealthGPT vs Unbotify

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. Only Unbotify has a free tier. Only StealthGPT ships a public API.

StealthGPTRewrites AI-generated text to slip past AI detectorsUnbotifyBuilds a private writing-voice profile from your own samples, then drafts or rewrites text to match it.

Side by side

FactStealthGPTUnbotify
CategoryAI Detection & HumanizersAI Detection & Humanizers
Pricing modelPaidFreemium
Public APIYesNo
PlatformsWeb, API, Chrome ExtWeb, Chrome Ext
CompanyXYZ AI Inc.Unbotify
Launched2023—
Last verifiedSep 6, 2026Sep 1, 2026

What our research says

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

Unbotify

Unbotify's approach — building a style profile from real writing samples rather than just paraphrasing sentences — is a more defensible answer to AI-detector anxiety than generic humanizer tools, based on third-party descriptions. This review could not independently verify that claim or the pricing, because the site actively blocked automated fetching.

Pros

  • Builds a personal style profile from actual writing samples instead of generic paraphrasing
  • Offers three distinct rewrite intensities (Light, Natural, Direct)
  • Available as both a Chrome extension and a standalone web app
  • Third-party listings report a 4.7-star average rating

Cons

  • The vendor's own site blocked automated access, so pricing and claims could not be verified firsthand
  • No company name or country confirmed by any source checked

Which one fits

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

Choose Unbotify if you need

  • Users who write frequently in one voice across tools and want AI drafts to match it
  • Anyone using AI drafts as a starting point who wants the output to not read as AI-generated

More comparisons

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