Originality.AI vs Undetectable AI (2026): Pricing, Features & Which to Choose

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

Lower starting price
Not comparable
Not comparable: Undetectable AI does not list a price
Free plan
Tie
Both have one
Higher rating
Originality.AI
4.5 against 3.2
Same job?
Yes
Both are Writing tools

Side by side

Compared on	Originality.AI	Undetectable AI
Our rating	4.5Better	3.2
Starts at	$12.95/mo	Free
Free plan	Yes	Yes
Category	Writing	Writing
Plans	Basic$0 Pro$14.95/mo, or $12.95/mo billed yearly Enterprise$179/mo, or $136.58/mo billed yearly	Free
Key features	AI content detection independently benchmarked for accuracy against competing detectors Live-web plagiarism checking rather than a static, outdated reference database Bundled fact-checking, grammar review, and readability scoring in the same platform Confidence scoring with highlighted, section-by-section breakdown of flagged text API access on Enterprise plans for teams screening content programmatically	AI text detection with flagged sections Image, audio and video AI detection Fake PDF detector AI humanizer that rewrites to evade detection Paraphrasing, plagiarism checking and Chrome extension
Pros	Accuracy claims are independently benchmarked rather than only self-reported Bundles several content-integrity tools that would otherwise require separate subscriptions Live plagiarism checking catches duplicate content that static-database checkers miss	Detection across image, audio and video, not just text Fake PDF detection targets a real and growing fraud problem Free tier available before any payment
Cons	No unlimited free tier; the free AI checker is capped at a small word count Credit-based pricing requires tracking usage rather than a flat predictable monthly cost Positioned mainly at publishers and agencies, so per-seat cost adds up for larger content teams	Ships a humanizer for evading detection, with students among named users Submitting rewritten work is academic misconduct at most institutions No pricing figures published on the landing page
Company	Originality.AI, founded 2022	Undetectable Inc.

Prices come from each vendor's pricing page, last checked 20260814. Check the vendor before you buy.

FAQ

Questions people ask

Is Originality.AI better than Undetectable AI?

In our reviews Originality.AI scores 4.5 and Undetectable AI scores 3.2. The better pick depends on the job. Originality.AI: An AI and plagiarism detector built for publishers who need to verify content before it goes live. Undetectable AI: Detects AI content across text, image, audio and video, and also rewrites text to evade detection.

Which is cheaper, Originality.AI or Undetectable AI?

Originality.AI: from $12.95/mo. Undetectable AI: free.

Do Originality.AI and Undetectable AI have free plans?

Yes, both have a free plan.

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