What is Know Nota used for?

Know Nota is an AI text detector that checks pasted or uploaded writing and explains the result in plain English, with source matching and an API on paid plans. It is a good fit for students checking a draft before submitting and developers adding AI checks to their app.

Yes. Know Nota has a free plan, and paid plans start at $18 per month.

Is Know Nota open source?

No. Know Nota is proprietary (closed-source) software and can't be self-hosted. In the AI Tools category, open-source options include LanguageTool, Page Assist and StashBase.

What are some alternatives to Know Nota?

Know Nota competes with GPTZero, Originality.ai and Copyleaks.

Know Nota: features, pricing and alternatives

About Know Nota

Know Nota, also called Nota, is a web service that estimates whether a piece of writing looks machine-generated. You paste text or upload a file of at least 10 words and get a result in plain English, along with an explanation of the score and the limits of the detector. The vendor stresses that detectors can make mistakes, so the result is a clue and not proof of who wrote the text.

Beyond the basic check there are tools for finding matching sources on the web (in beta), saved reports you can download or share, a writing history report, a browser extension for Google Docs and a developer API. It has a section aimed at students who want to check a draft before handing it in.

Know Nota is a hosted service with three tiers. The free account allows 2,000 words a day and works without a card. The Individual plan adds source matching and report downloads, and the Professional plan adds API access with bearer keys and batch checks of up to 100 files.

Key features

AI-likeness check for pasted text or uploaded files
Plain-English result with model limits explained
Matching web sources for passages (beta)
Downloadable and shareable saved reports
Writing history report
Browser extension for Google Docs
Developer API with batch checks

Good fit for

Students checking a draft before submitting
Developers adding AI checks to their app

Tags: ai-detector; text-analysis; education; writing; plagiarism; api; browser-extension

Know Nota: questions and answers

What is Know Nota used for?: Know Nota is an AI text detector that checks pasted or uploaded writing and explains the result in plain English, with source matching and an API on paid plans. It is a good fit for students checking a draft before submitting and developers adding AI checks to their app.
Is Know Nota free?: Yes. Know Nota has a free plan, and paid plans start at $18 per month.
Is Know Nota open source?: No. Know Nota is proprietary (closed-source) software and can't be self-hosted. In the AI Tools category, open-source options include LanguageTool, Page Assist and StashBase.
What are some alternatives to Know Nota?: Know Nota competes with GPTZero, Originality.ai and Copyleaks.