OpenAI Cofounder And Former Tesla AI Leader Andrej Karpathy Joins Anthropic

BreakingBusinessOpenAI Cofounder And Former Tesla AI Leader Andrej Karpathy Joins AnthropicByAlicia Park,Reporter. I cover markets and tech.Follow AuthorMay 19, 2026, 02:08pm EDTToplineAndrej Karpathy, a founding member of OpenAI and former AI chief at Tesla, has joined Anthropic, he announced Tuesday—a high-profile hire of one of the most recognizable names in AI research as the lab races against tech companies including OpenAI, Google and Meta for elite talent. (Photo By Michael Macor/The San Francisco Chronicle via Getty Images)San Francisco Chronicle via Getty ImagesKey FactsKarpathy started this week at Anthropic, where he is working on pre-training—the foundational stage of developing large language models—under team lead Nick Joseph, the company said.He will help launch a new team focused on using Claude to develop its models, not relying solely on expensive raw compute and hardware alone, the company added. Karpathy posted on X Tuesday that he believes "the next few years at the frontier of LLMs will be especially formative” and is excited to get back into research and development—after running AI education startup Eureka Labs for the past two years.Karpathy famously coined the term "vibe coding” to describe using AI to write code and is a widely regarded voice on AI developments and the industry through his social media posts online. Chris Rohlf, a 20-year cybersecurity veteran most recently at Meta, also announced Tuesday he joined Anthropic’s frontier red team, which stress-tests models against severe threats. if (!window.cnxel) { window.cnxel = {}; window.cnxel.cmd = []; var iframe = document.createElement('iframe'); iframe.style.display = 'none'; iframe.onload = function() { var iframeDoc = iframe.contentWindow.document; var script = iframeDoc.createElement('script'); script.src = '//cd.elements.video/player.js?cid=62cec241-7d09-4462-afc2-f72f8d8ef40a'; script.setAttribute('defer', '1'); script.setAttribute('type', 'text/javascript'); iframeDo...