Former OpenAI Exec Builds $1.5B Arda to Revive U.S. Manufacturing With AI

Former OpenAI research chief Bob McGrew has quietly built Arda, an AI software startup valued at $1.5 billion that aims to accelerate U.S. manufacturing by automating assembly line design and adaptation. The company raised $230 million in a round led by Altimeter Capital, Accel and Khosla Ventures, and has already deployed its models with military technology company Anduril. Arda’s software is intended to act as a user interface and agent for manufacturing engineers, comparable to how Claude or Cursor serve programmers. McGrew argues that a core bottleneck in manufacturing is the length of time needed to reconfigure automation after a product design changes, particularly for defense systems such as weapons or drones. While a human operator can be retrained in a day, he said updating automated production lines can take three to six months. Arda’s system is designed to let engineers build and modify assembly lines far more quickly, with robotics planned as a next step on the company’s roadmap. McGrew joined OpenAI in 2017 and worked on the reasoning capabilities of early models before ChatGPT’s launch, remaining through the turbulent period in late 2023 when Sam Altman was briefly removed and reinstated as chief executive. He left during a broader wave of senior departures that included CTO Mira Murati and co-founder and chief scientist Ilya Sutskever. McGrew said he wanted to remain long enough to help ship OpenAI’s reasoning product, which he viewed as a major step toward artificial general intelligence, before moving on to another mission. Arda’s co-founders include Augustus Odena, a former Adept co-founder and ex-Google and Meta employee, as well as former Palantir engineers Alex Mark and Jakob Frick. The company uses a mix of proprietary models, open-source models and frontier models. McGrew’s background also includes more than a decade as Palantir’s product and engineering lead. Investors see a large commercial opportunity in applying advanced AI to a global industry worth an estimated $16 trillion, with the U.S. market alone valued at about $3 trillion. Altimeter partner Apoorv Agrawal, who met McGrew at Palantir, said Arda’s vision could capture a meaningful share of that market, even if adoption costs remain high in the near term. McGrew also framed the effort as economically and strategically significant, arguing that faster reconfigurable automation could help bring more manufacturing, and more jobs, back to the United States.