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Free

NumLookup

NumLookup AI detector. Website screenshot.
★★★★★
Price Level:
Free

NumLookup, a phone lookup service, now offers a free AI content detector as a separate feature. 

This tool delivers results within seconds, making it a practical solution for quick content verification needs.

Key Features:

  • Free to use with no sign-up required.
  • Web-based interface.
  • Claimed accuracy rating is valid.
  • Community-driven improvements (accepts user feedback).

Limitations and Considerations:

  • Minimum 200 words recommended for best accuracy.
  • No file upload support.
  • Data privacy policies are unclear. Use caution when analyzing sensitive texts.
  • CAPTCHA requirements slow down bulk text analysis.

NumLookup's AI detector is ideal for bloggers, writers, and content creators who need to perform occasional checks on individual texts, offering a simple way to verify if content is human-written or AI-generated.

NumLookup's AI detector works by analyzing text (minimum 200 words recommended) using proprietary algorithms to identify AI-generated content. 

Simply paste your text, complete a CAPTCHA, and receive results within seconds. 

The exact detection mechanisms aren't publicly disclosed. Note that submitted texts appear to be stored and used to improve the detection system.

How accurate is NumLookup's AI detector?

Overall score:
5 out of 5 stars (★★★★★).
Our testing showed it is very accurate.
The tool gives a numerical result (score): Yes.
It detected our:
● Human written text as
100% human
(★★★★★).
● Humanized AI text as
99% AI
(★★★★★).
● Fully AI-generated text as
99% AI
(★★★★★).
Disclaimer: We only test texts written in English. Results may vary.

FAQ

We've tested over 150 AI detectors and have a solid grasp of the market. Using our custom methodology, we ensure all tools are compared fairly. Our testing is unbiased, praising only those we believe in.

The tools on this website are tested using a specific testing method for each category. This ensures they are evaluated fairly and in a way most people would use them.

AI detectors may seem similar at first glance, but they come with different features and are intended for various use cases. Choose a tool that best suits your specific needs for the most accurate results. 

Paid tools are usually more accurate and better for advanced users needing integration and bulk detection. 

Free tools can be hit-or-miss, with usage limits and varying accuracy. 

Therefore, we suggest you check out all of our AI detectors to find the best option for you.

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