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Free

Ghostbuster

Ghostbuster AI Content Detector. Website screenshot.
★★★☆☆
Price Level:
Free

Ghostbuster is a free tool that can spot text written by AI. It was created by computer scientists at UC Berkeley.

Key Features:

  • Identifies AI-authored content without needing access to the specific AI system that might have created it.
  • Detailed documentation available on GitHub.

Limitations and Considerations:

  • As a university project, Ghostbuster may have limited long-term support and infrequent updates.
  • Ghostbuster sends all inputs to OpenAI's API, without privacy guarantees.
  • Struggles to identify AI-generated but human modified text. 

Anyone can use Ghostbuster to check if text was written by AI or a human. It's free and accessible to all, whether you're a student, writer, or just curious about online content. 

Ghostbuster detects AI-generated text through a multi-step process. 

It first analyzes the input text using various language models, ranging from simple word-frequency counters to more sophisticated programs like GPT-3. 

These models calculate the probability of each word in the text. 

Ghostbuster then searches for meaningful patterns in these probabilities, creating a set of distinctive features. 

Finally, it uses a trained classifier to determine whether the text is likely AI-generated or human-written based on these features. 

How accurate is Ghostbuster's AI detector?

Overall score:
3 out of 5 stars (★★★☆☆).
Our testing showed it is moderately accurate.
The tool gives a numerical result (score): Yes.
It detected our:
● Human written text as
89% human
(★★★★☆).
● Humanized AI text as
37% AI
(★★☆☆☆).
● Fully AI-generated text as
93% 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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