Greg Brockman says that AI is writing most code at companies today. Bloomberg/Getty Images AI tools can now generate up to 80% of code, said OpenAI's president. Greg Brockman said that AI has become more than a small supporting tool for software engineers. Tech leaders predict that AI will soon write a majority of their company's code. AI coding tools have rapidly advanced in recent months, says OpenAI's president . At a Sequoia Capital talk uploaded Thursday, Greg Brockman said that AI has become more than just a supporting tool for software engineers. "If you look even over the course of December, we went from these agentic coding tools writing 20% of your code to writing 80% of your code," Brockman said. "Which means they go from being kind of a sideshow to being the main thing that you're doing." Brockman, who cofounded the AI company in 2015, said he would advise founders to "lean in" and embrace AI tools because they're making rapid strides.…