StealthGPT

The humanizer is the core of the product. It rewrites pasted AI text at the model level, not by swapping words, so the output matches the statistical shape of human writing rather than approximating it. StealthGPT says the engine was trained on billions of sentences and gets retrained when detectors change. You pick a tone, hit Humanize, and get a passage that keeps your argument while reading less mechanical. If a score still looks high, you rerun it or switch to the Super model.

Claude, Gemini, and OpenAI embed invisible watermarks in the text they generate. The humanizer strips them during the sentence-level rewrite, so no extra tool or step is needed. The same engine also powers standalone detectors and removers for Claude's marker, Gemini's SynthID, and OpenAI's textGrain, which lets you check a draft before publishing instead of guessing. For anyone handling flagged AI text, that removes a whole separate cleanup pass.

You're not stuck with one rewriting strength. Super rewrites hardest and is the model the company points to for beating Pangram and the other strict checkers. Stealth Lite takes a lighter pass, clearing the obvious AI tells like long dashes and stock phrasing while keeping the draft close to your original wording. That range covers both cases: a passage that needs a full rewrite, and one that just needs its rough edges sanded down.

Before you submit anything, the detector estimates how major checkers would read your text. It gives a human score and an overall read, modeled on tools like Turnitin, so you get a verdict before someone else runs one. The first scan doesn't need an account, which makes it easy to test a passage before committing. It's the natural companion to the humanizer, since you use it to confirm the rewrite worked.

Beyond rewriting, StealthGPT can generate a full document from a topic. The Stealth Writer drafts the piece and lets you click any sentence to insert a real citation, then set it to whatever academic format you need. The company frames it as a humanizer and a research assistant in one place. For students working on essays, it turns the tool from a cleanup step into the place the draft actually gets built.

The humanizer isn't locked to the website. An API and MCP access let teams call it from code, and integrations cover Zapier, WordPress, Claude, and Cursor, so longer content or humanized text can be produced inside tools you already use. The Chrome extension v3.0 adds human typing, auto-filling text into any input box as if a person typed it. The Enterprise plan adds dedicated support and custom fine-tuned models.