Microsoft CEO Satya Nadella said that 20%-30% of code inside the company's repositories is "written by software," meaning AI.

At Meta’s LlamaCon conference, Satya Nadella shared whether AI is better at writing Python or C++ and asked Mark Zuckerberg how much Meta code is written by artificial intelligence.

Pyrefly from Meta and Ty from Astral offer type-checking for Python codebases at the speed of Rust.