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AI Undetect

A freemium AI text humanizer that rewrites AI-generated content for detection evasion, with separate consumer and enterprise API plans and a built-in detector.

FreemiumAI Detectoraiundetect.com
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AI Undetect is a Freemium AI tool available on Web-based AI text humanizer with API access. As of Jul 14, 2026, 5 of 12 public claims about it are backed by cited sources on this page.

Pricing
Freemium
Platforms
Web-based AI text humanizer with API access
Verified claims
5/12
Alternatives
3
AIGCList editorial score
4.8
Last verified
Jul 14, 2026

Decision summary

Rewriting AI-generated content to bypass detection

Writers, students, and enterprise users

Best for

  • Making AI-generated text appear human-written
  • Multi-language content humanization
  • Enterprise workflow integration via API

Watch out for

  • '100% undetectable' claim is an unverified vendor assertion
  • Online and API plans are disconnected with no credit sharing
  • "100% undetectable" claim lacks published third-party verification or methodology

Overview

AI Undetect positions itself as a freemium tool for rewriting AI-generated text so that it passes AI detection filters. The service offers both a web-based humanizer and a built-in AI detector, with separate subscription tracks for individual users and enterprise API customers.

How It Works

Users paste AI-generated text into the web interface. The service rewrites the content using proprietary algorithms, with the vendor claiming the output is "100% undetectable" by tools like GPTZero. The built-in detector provides a complementary check before content submission. A free tier offers 500 words of humanization and 10 detector uses; paid subscriptions unlock higher word limits. When users exhaust their allowance and renew, the vendor states that previously unused credits are retained.

API and Enterprise Access

An API tier targets enterprise users who want to integrate AI humanization into their own workflows, websites, or applications. The API supports subscription management and credit queries programmatically. Documented error codes cover common failure modes: missing API keys, rate limiting, invalid parameters, unsupported languages, insufficient word credits, and server errors. Notably, the vendor confirms that online consumer plans and API enterprise plans are not interconnected — credits do not transfer between them, which may require separate budgeting for teams that need both access modes.

Language and Compatibility

The tool claims support for over 20 languages and compatibility with output from ChatGPT, Claude, Jasper, and other AI writers. This positions it for multi-language content teams and diverse AI-assisted workflows. The vendor also frames the built-in detector as practical for office tasks, suggesting use in maintaining professional document integrity.

What's Not Clear

The central marketing claim — "100% undetectable" — is a vendor assertion without published third-party verification or methodology. Pricing details are gated behind a login wall, and the publicly available documentation is minimal. Competitors like Content True occupy a similar space in the AI Detector landscape, making independent efficacy testing important for purchasing decisions. For teams evaluating AI humanization tools, the free tier allows low-risk testing, but the unverified detection-evasion claims warrant skepticism.

Editorial assessment

Score anatomy

The dimensions behind the editorial score. Open a row to inspect the judgment and its supporting context.

Scores indicate documented product strength, not a hands-on guarantee.

Information quality3.8

Central '100% undetectable' claim is an unverified vendor assertion with no published third-party testing or methodology.

Homepage states output is '100% undetectable' without citing benchmarks, test conditions, or independent validation.

Ease of use6.8

Paste-based web interface is straightforward; API documentation covers error codes clearly for developers.

Homepage describes a simple paste-and-rewrite flow; API reference documents seven error codes with explanations.

Feature depth4.5

Two core features — humanizer and detector — but no advanced controls, tone settings, or granular output options are visible.

Available passages describe text humanization and AI detection only; no customization parameters or output controls are documented.

Workflow fit5.0

API supports enterprise automation but disconnected consumer and enterprise plans create friction for mixed-use teams.

API reference confirms programmatic integration; vendor documentation explicitly states the two plan types are not shared or interconnected.

Reliability3.5

Core detection-evasion promise cannot be verified from available evidence; API error handling is documented but basic.

No published accuracy data or third-party testing for the humanizer's evasion rate; API error codes cover common failures but lack SLA or uptime commitments.

Value5.5

Free tier enables low-risk evaluation, but pricing is gated behind login and plan fragmentation may increase costs for multi-mode users.

500 free words and 10 detector uses available without payment; pricing details require authentication; separate plans may force dual subscriptions.

Evidence check

Public claims about this tool, each tagged with a verification status and its cited source.

3 source groups

www.aiundetect.com8
www.aiundetect.comVerifiedChecked Jul 14, 2026

AI Undetect rewrites AI-generated text to produce human-like output intended to bypass AI detection tools.

New users receive 500 free rewrite credits and 10 AI detector uses; additional capacity requires a paid subscription.

The AI rewriter supports over 20 languages.

The tool works with output from ChatGPT, Claude, Jasper, and other AI writers.

The vendor claims the rewritten output is 100% undetectable by AI detectors.

AI Undetect includes a built-in AI detector alongside its humanizer, with 10 free detector uses for new users.

The vendor positions the AI detector as practical for office tasks, claiming it helps maintain document integrity and professionalism.

When users exhaust their word limit and renew a subscription, previously unused credits are retained.

https://www.aiundetect.com/
api3
www.aiundetect.comVerifiedChecked Jul 14, 2026

An API tier allows enterprises to integrate AI text humanization into their own websites, apps, or workflows.

The API documents error codes covering missing keys, rate limiting, invalid parameters, unsupported languages, insufficient credits, and server errors.

Online consumer subscriptions and API enterprise plans are not shared or interconnected; credits do not transfer between them.

https://www.aiundetect.com/api
login1
www.aiundetect.comVerifiedChecked Jul 14, 2026

The website uses cookies and requires consent for theme functionality.

https://www.aiundetect.com/login?url=/api

Before you visit

Decision desk

The questions most worth resolving before you rely on the product or visit its official site.

01What does AI Undetect do?

It rewrites AI-generated text to produce human-like output designed to bypass AI detection tools, and includes a built-in AI detector for pre-submission checks.

Verify on official site

02Is there a free tier?

Yes. New users receive 500 free rewrite words and 10 AI detector uses. Additional capacity requires a paid subscription.

Verify on official site

03Which AI writers does it support?

The vendor states compatibility with ChatGPT, Claude, Jasper, and other AI writing tools.

Verify on official site

Show 3 more questions
04Can I integrate AI Undetect into my own application?

Yes, via the enterprise API tier, which supports programmatic text humanization with documented endpoints and error codes.

Verify on official site

05Are online and API plans linked?

No. The vendor explicitly states that consumer online plans and enterprise API plans are not interconnected, and credits do not transfer between them.

Verify on official site

06Is the '100% undetectable' claim verified?

No independent third-party testing or methodology has been published to substantiate this vendor claim.

Verify on official site

Read enough? Open AI Undetect to judge it yourself.

Visit AI Undetect

Explore the landscape

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Editorial alternatives

Different paths for a similar job

These tools were linked as editorial alternatives with a documented reason for the relationship.

01Content True

Content True

Offers a similar AI text humanization service with freemium access; direct competitor in the detection-evasion space.

View record
02GPTZero

GPTZero

A widely used AI detector that AI Undetect claims to evade; represents the detection standard users are trying to bypass.

View record
03Grammarly

Grammarly

A writing assistant focused on grammar and clarity rather than detection evasion; a contrast for users considering whether humanization or editing is the actual need.

View record