Arda Raises $230M at $1.5B Valuation, CNBC Reports

Arda, the manufacturing AI start-up founded by former OpenAI research chief Bob McGrew, has raised $230 million at a $1.5 billion valuation, the company told CNBC in an exclusive interview published on 20 October 2026. Altimeter Capital, Accel and Khosla Ventures led the round, according to CNBC.

These figures come from what the company told CNBC. TSN found no press release or filing confirming them. The round is a large bet that AI can speed up a slow and labour-heavy part of industry: changing factory automation when a product design changes.

In brief

Arda says it has raised $230m at a $1.5bn valuation in a round led by Altimeter Capital, Accel and Khosla Ventures; the figures are the company’s, given to CNBC.
McGrew describes the product as “a user interface and an agent” for manufacturing engineers, and says its models have been deployed with Anduril.
The Wall Street Journal reported in March that Arda was then raising $70m at a $700m valuation.

What Arda says it builds

Arda makes AI software to help automate manufacturing, CNBC reports. “It’s a user interface and an agent that does for manufacturing engineers what Claude or Cursor does for programmers,” McGrew told CNBC.

He said the problem is how slowly factory automation adapts. “When a design changes, you can retrain a human in a day — but it takes three to six months in order to change the automation to reflect the new design,” McGrew said. “We’ve built a software and AI product that basically allows manufacturing engineers to build assembly lines much faster.”

According to McGrew, Arda runs on a mix of its own proprietary models, open-source models and some frontier models. He also said its AI models have already been deployed with the defence technology company Anduril. That is the company’s claim, and no other details of the work were given. Arda builds software for factory engineers, not hardware. McGrew told CNBC that robotics is next on the product roadmap.

Who is behind it

McGrew joined OpenAI in 2017 and worked on the reasoning capabilities of early models before ChatGPT launched, according to CNBC. He left in 2024 during a wave of senior departures that also included Mira Murati and Ilya Sutskever. Before OpenAI, he spent more than a decade as Palantir’s product and engineering lead.

His co-founders include Augustus Odena, who helped start Adept and previously worked at Google and Meta, and the former Palantir engineers Alex Mark and Jakob Frick.

Altimeter’s Apoorv Agrawal, who met McGrew when both worked at Palantir, led the round, CNBC reported. “Manufacturing globally is a $16 trillion industry. In the U.S. alone, it’s $3 trillion,” Agrawal said. “Yes, the price is steep today, but the long-term opportunity is very high.” Those market figures are Agrawal’s. CNBC did not say how much each investor put in.

From $700m to $1.5bn

The valuation has risen quickly. In March, The Wall Street Journal reported, citing people familiar with the matter, that Arda was raising $70 million at a $700 million valuation, with Founders Fund and Accel co-leading. The paper said at the time that the round had not closed and that terms could change.

McGrew presents the company as part of a push to bring manufacturing back to the US. “If your design changes very frequently, the only place you can really build your product is in East Asia, because you need an army of human workers who can be retrained quickly, and you can’t wait for automation to catch up,” he said. “No one has ever successfully built a smartphone in the U.S.,” he added.

Our read

Arda joins a crowd of AI start-ups reaching unicorn valuations within months, often based on the founders’ track records more than on public revenue. McGrew’s pitch, a coding-assistant-style agent for factory engineers, is concrete, and an early user in Anduril gives it credibility in defence manufacturing. But the round size, valuation and deployment are all the company’s own account. Until Arda publishes customers or results, investors are backing the team and the thesis.