What is a common characteristic of large language models $($LLMs$)$ used in text$-$based generative artificial intelligence $($A$)?$

They are trained on vast amounts of textual content and produce human$-$llike text.

Ihey primarily use imege$-$based data sources to generate text content.

Ihey require neural networks but do not use deep learning techniques.

Ilhey are less expensive to train compared to other Al models.