What is Language model?

A language model was trained on a huge amount of text and learned to continue text in a coherent way. Since code is also text, it learned to write code.

Vibecoding tools use language models under the hood and add the rest: the chat screen, the preview, publishing.

One important point: the model writes what looks right, not what it has confirmed is right. That’s why it can say it fixed something that is still broken. See what to do when that happens.