How Accurate Is GPT Zero?

GPT Zero claims to have a 96.5% accuracy rate. However, it is hard to assess AI detectors’ performance with 100% precision as this technology is still under development. Artificial intelligence algorithms improve daily, and new detectors enter the market. Below, we’ll discuss the efficiency of GPTZero.

How GPTZero Works

GPTZero analyzes the text using two parameters: perplexity (how predictable the words in the text are) and burstiness (how often the same words and sentence structures are repeated). As a result, the detector gives a perplexity and burstiness score and highlights sentences that look generated.

Our GPT Essay Checker goes even further – it uses a color-coded system to mark each word according to its probability of being AI-written in this text.

So, if you need a more detailed analysis than what GPTZero offers, we recommend using IvyPanda’s tool.

GPTZero Accuracy

Farrokh Habibzadeh in his research revealed an 80% accuracy of GPTZero for medicine-related texts. The author also claimed this tool has a low percentage of false positives (10%)—that is, it rarely marks human writing as artificially created. At the same time, he believes in a fairly high percentage of false negatives – 35%, meaning it does not always recognize AI content and may perceive it as original.

In general, GPTZero is quite an accurate AI detector, although it might be troublesome to figure out what a perplexity and burstiness score is. In contrast, the IvyPanda GPT checker doesn’t have such shortcomings: it clearly shows how likely your text is generated and highlights problematic words.