Are higher perplexity and higher burstiness always better?

Perplexity measures how predictable the words in a piece of writing are, while burstiness reflects how predictable its structure is.

Because human writing often scores higher for these measures than AI-generated text, it may seem like maximizing them is always better. However, in many cases, lower perplexity and burstiness can make a text easier to read and understand.

If word choice is predictable (perplexity), text becomes easier to read. Likewise, if the structure is predictable, it may be easier to skim. 

In fact, even poor writing (like spelling errors or run-on sentences) can inflate burstiness and perplexity.

For these reasons, the ideal balance depends on the context and purpose of writing. Still, these measures help tools like QuillBot’s AI detector determine whether something was written by a human or by AI.

Read this FAQ: Are higher perplexity and higher burstiness always better?

What are burstiness and perplexity used for?

Burstiness and perplexity are two metrics that capture patterns in a piece of writing. Perplexity measures how easy it is to predict which words come next, and burstiness measures how easy it is to predict sentence structure and length. 

These measures are used by tools like QuillBot’s AI detector to guess whether something was written by a person or an AI. They can also be used to evaluate the quality of an AI text generator.

Read this FAQ: What are burstiness and perplexity used for?

What is an example of perplexity?

Perplexity measures how predictable the words in a sentence are. 

Consider the phrase: “I sat at the bar and ordered a glass of red…” A low-perplexity (i.e., highly predictable) ending would be “wine.” Conversely, a high-perplexity (less predictable) ending might be “jelly beans.”

AI-generated text often has lower perplexity than human writing. Perplexity is therefore used by tools like QuillBot’s AI detector to guess whether something was written by a person or an AI.

Read this FAQ: What is an example of perplexity?

What is an example of burstiness?

Burstiness is a metric that captures how varied the structure of a piece of writing is. Elements like sentence length, sentence structure, and changes in word use impact burstiness. 

An example of writing with low burstiness is as follows: “I have a dog. My dog’s name is Tim. Tim looks a bit scruffy. Tim’s ears stick out. Tim likes to go for walks.”

Compare this with an example of writing with high burstiness: “I have a dog. His name is Tim, and he’s a scruffy little character with ears that stick out sideways like broken antennae. Tim lives for walks—whether it’s a quick trot around the block or a long ramble through the park.”

AI-generated text often has lower burstiness than human writing. Burstiness is therefore used by tools like QuillBot’s AI detector to guess whether something was written by a person or an AI.

Read this FAQ: What is an example of burstiness?

What is a scope of work generator?

It is a tool, often AI-powered, that helps users quickly create professional, clear, and detailed scope of work documents by inputting project details.

The generator structures objectives, deliverables, timelines, and responsibilities into a well-organized draft that can be refined to fit your project’s specific needs. For a fast and reliable option, try QuillBot’s AI scope of work generator.

Read this FAQ: What is a scope of work generator?

What is a press release template?

A press release template helps you to draft a press release and make sure you don’t forget anything. Press releases can be scheduled events, or they can be issued in times of crisis. This makes it especially important to get them right.

As well as a template, you can use an AI tool like QuillBot’s AI press release generator. This lets you input all the details you need, and it quickly produces a press release that you can check, fine-tune, and even redraft if you want to.

Read this FAQ: What is a press release template?