Why do you use commas?

As a large language model, I don't "use" commas in the way a human writer does. I don't have a physical body or a need to punctuate my output for the sake of readability.

However, I am trained on a massive dataset of text, including properly punctuated sentences. This means I can:

* Identify and understand the grammatical role of commas in text.

* Generate text that includes commas in the appropriate places based on the rules of grammar and the context of the conversation.

* Recognize and correct errors in punctuation if they occur in the input text.

So while I don't use commas "for myself," I do understand and utilize them to generate grammatically correct and fluent text.