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What is Undetectable AI?
Undetectable AI is a text humanizer built to rewrite AI-generated content so it reads more like natural human writing and scores lower on AI detectors such as Turnitin, Originality.ai, and GPTZero. It bundles its own AI detector too, so you can check a draft before and after humanizing it instead of switching tools.
Key features
- Bulk humanization for rewriting long documents in one pass
- Built-in AI detector to score text before and after humanizing
- Multiple rewrite modes trading off readability against how heavily the text changes
- Plagiarism check alongside the AI-detection score
- API access for humanizing text inside your own workflow
How to get started
- Paste AI-generated text into the humanizer, or upload a document
- Pick a rewrite mode based on how heavily you want the text altered
- Run the built-in detector on the output to check the new score
- Edit any sentence that still reads awkwardly after rewriting
Undetectable AI pricing
The free tier covers a small monthly word count; paid plans are credit-based, so cost scales with how much text you rewrite rather than a flat monthly fee.
| Plan | Price | Best for |
|---|---|---|
| Free | $0 | Trying the humanizer on a short document |
| Lite | ~$10/mo | Occasional use, a few documents a month |
| Pro | ~$25-30/mo | Regular use across longer documents |
| Enterprise | Custom | Teams humanizing content at scale |
Prices change often. Check the official site above for current rates before you commit.
Use cases
- Making AI-drafted marketing copy or blog posts read more naturally before publishing
- Lowering false-positive risk on human-written text that a detector misflags
- Rewriting AI-assisted drafts before submitting written work
- Checking how a document scores across multiple detectors before sharing it
Undetectable AI alternatives
- Humbot: Humbot leans more on preserving exact meaning sentence by sentence, with less emphasis on a bundled detector.
- StealthGPT: StealthGPT can generate new text from scratch too, not just rewrite existing drafts.
- Phrasly: Phrasly checks output against several detectors at once instead of just its own.
- WalterWrites AI: WalterWrites is a cheaper, no-frills option if you just need the core rewrite function.
FAQ
Is Undetectable AI free to use?
Undetectable AI's plans: Free tier with limited words, plus paid credit-based plans. Pricing and free-tier limits change over time, so check the official site above for the latest details.
What is Undetectable AI used for?
Rewrites AI-generated text to read more naturally and lower AI-detector scores.
Who is Undetectable AI best for?
Undetectable AI is a good fit for making AI-drafted marketing copy or blog posts read more naturally before publishing, or lowering false-positive risk on human-written text that a detector misflags.
What are the alternatives to Undetectable AI?
Commonly compared alternatives include Humbot, StealthGPT, and Phrasly, see the comparison above for how they differ.
How much does Undetectable AI cost?
Free ($0); Lite (~$10/mo); Pro (~$25-30/mo); Enterprise (Custom). Prices change often, so check the official site for the current rate before you commit.
What's the best Undetectable AI alternative?
Humbot is the most commonly recommended swap: humbot leans more on preserving exact meaning sentence by sentence, with less emphasis on a bundled detector. Which one is actually best depends on which of those tradeoffs matters more for what you're doing.
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Last reviewed: 2026-08 · Reviewed by AIKetra editors · How we evaluate tools
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