Tech giants are increasingly letting machines do the coding. Microsoft CEO Satya Nadella revealed Tuesday that artificial intelligence is now responsible for writing between 20% and 30% of the company’s code base.

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.

Microsoft CEO Satya Nadella says that around 20-30% of the code that is inside its repos today, and some of its projects, are written by AI.