GPT-4 has arrived. It will blow ChatGPT out of the water

The systems are "pre-trained" by analyzing trillions of words and images taken from across the internet: news articles, restaurant reviews and message-board arguments; memes, family photos and works of art. Giant supercomputer clusters of graphics processing chips then mapped out their statistical patterns -- learning which words tended to follow each other in phrases, for instance -- so that now the AI can mimic those patterns, automatically crafting long passages of text or detailed images, one word or pixel at a time.