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SuperHumanizer 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.

The short answer

Free plan
Only SuperHumanizer (StealthGPT has paid plans only)
Public API
StealthGPT has one; not confirmed by us for SuperHumanizer
Best fit
SuperHumanizer: Loosening up stiff, repetitive machine drafts before editing them yourself · StealthGPT: Content operations running bulk rewriting through an API or n8n workflow
Platforms
SuperHumanizer: Web, Chrome extension, iOS, Android · StealthGPT: Web, Chrome extension, iOS
Trust score
About even — SuperHumanizer 83, StealthGPT 86

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

Side by side

FactSuperHumanizerStealthGPT
CategoryAI Detection & HumanizersAI Detection & Humanizers
Pricing modelFreemiumPaid
Starts at$12/mo—
Public APINot confirmedYes
Trust score83 / 10086 / 100
PlatformsWeb, Chrome extension, iOS, AndroidWeb, API, Chrome extension, iOS
CompanyKamranali LimitedXYZ AI, Inc.
Launched—2023
Last verifiedOct 15, 2026Oct 22, 2026

What our research says

SuperHumanizer

A no-signup humanizer whose whole selling point is beating academic and editorial AI detectors, now with a named operator, a refund policy and paid tiers behind the free box. It is useful for loosening stiff machine drafts you will edit anyway, and reckless for the coursework case it advertises. The free tier is generous enough that paying only makes sense for volume.

Pros

  • No sign-up, no card and a 1,200-word free run with history kept in the browser
  • Handles output from any model and accepts Word, PDF and text uploads
  • Terms name a legal operator, Kamranali Limited, and a 7-day refund rule, which the old address lacked
  • Chrome extension and mobile apps for people who rewrite inside other tools

Cons

  • The domain changed from aihumanizer.io without any notice on the site, which is thin for a product people trust with drafts
  • Zero-percent detection claims are unverifiable and detectors retrain constantly
  • Monthly word caps and per-input limits make the paid tiers less generous than the free box suggests
  • The built-in detector is paid-only, so the free tier cannot check its own output

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 SuperHumanizer if you need

  • Loosening up stiff, repetitive machine drafts before editing them yourself
  • A quick free pass of up to 1,200 words with no account to create
  • Comparing detector-score behaviour against a paid humanizer

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

SuperHumanizer vs StealthGPT: the questions people ask

Is SuperHumanizer cheaper than StealthGPT?

SuperHumanizer starts at $12/mo. An entry price for StealthGPT is not confirmed by us yet, so check its pricing page before you compare.

Does SuperHumanizer or StealthGPT have a free tier?

SuperHumanizer has a free tier; StealthGPT has paid plans only.

Which has a public API, SuperHumanizer or StealthGPT?

StealthGPT ships a public API, as of our last verification. A public API for SuperHumanizer is not confirmed by us — check its developer docs before you plan an integration.

All SuperHumanizer alternatives →Browse all AI Detection & Humanizers →