AI models, such as GPT-Generative Pretrained Transformer are capable of writing texts that may be almost identical to human texts. These, thus, absorb significant amounts of data and can output texts coherent and contextually appropriate.
It might well write articles, poems, and summaries, besides code, but not have human creativity or deep emotions in a word. Even though AI-generated content may appear to be coming from a human who is writing it, it can be less nuanced and full of real understanding at all.
This means it is excellent for doing repetitive and formulaic tasks but not suitable for more complex or creative ideas that require that human touch.