[m00x]

GPT-4 and chatGPT are developed from mostly Google papers and Facebook code/frameworks.

OpenAI just focused on making it a great product.

[gradstudent]

A car is basically 4 wheels and a combustion engine. Henry Ford just focused on making it a great product.

(In case it's not clear, I think you might be underestimating the size of the subsequent contributions)