Ex-OpenAI Research Chief’s Arda Hits $1.5B in $160M Series A

Arda, the manufacturing AI startup founded by former OpenAI executive Bob McGrew, has raised a $160 million Series A at a $1.5 billion valuation, McGrew said on X on 20 October 2026, as the company launched publicly in an exclusive interview with CNBC.

CNBC reported the raise as $230 million at a $1.5 billion valuation. McGrew wrote that the Series A brings Arda’s total funding to $232 million.

Business Pill · PHYSICAL AI

A one-minute explainer of physical AI: what changes when AI gets a body, from robots to factories. It teaches the general idea only and says nothing about any company in this story.

Who Invested in Arda

McGrew wrote that the Series A was co-led by Altimeter Capital, Accel and Khosla Ventures, with participation from XYZ, 8VC, SV Angel and Felicis.

CNBC reported that Altimeter’s Apoorv Agrawal led the round, and that he met McGrew when they both worked at Palantir.

“Manufacturing globally is a $16 trillion industry. In the U.S. alone, it’s $3 trillion,” Agrawal told CNBC. “Yes, the price is steep today, but the long-term opportunity is very high.”

What Was Posted on X

Bob McGrew posted at 14:57 UTC on 20 October that Arda was started in 2025, has spent the last year building with Anduril as its design partner, and is announcing a Series A of $160M at a $1.5B valuation. His post is the source of the round figures used in our headline; CNBC reported $230 million.

CNBC posted its exclusive at 13:13 UTC: “Former OpenAI exec has quietly built $1.5 billion startup, betting AI can revive U.S. manufacturing.” The article is where McGrew compares Arda to what Claude or Cursor do for programmers.

Ivan Burazin, whom Fortune identifies as Daytona’s cofounder and CEO, posted at 15:00 UTC that the company raised a $60M Series B at a $1B valuation to build Daytona into the Agent Cloud, led by FirstMark, with “all key existing investors and angels doubling down.”

What Arda Builds

“It’s a user interface and an agent that does for manufacturing engineers what Claude or Cursor does for programmers,” McGrew told CNBC.

“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,” he said, according to CNBC.

McGrew wrote on X that the platform helps manufacturers design and operate manual assembly lines, and that Arda has spent the last year building with Anduril as its design partner. CNBC reported that Arda’s AI models have already been deployed with Anduril.

According to CNBC, Arda runs on a combination of its own proprietary models, open-source models and some frontier models, and McGrew said 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 the launch of ChatGPT, CNBC reported. He left during a 2024 wave of high-profile exits, and was earlier Palantir’s product and engineering lead for over a decade, CNBC said.

Arda’s other co-founders include Augustus Odena, who helped start Adept and previously worked at Google and Meta, and former Palantir engineers Alex Mark and Jakob Frick, according to CNBC.

Also Today: Daytona Reaches $1 Billion

Daytona, which builds cloud infrastructure for AI agents, said on 20 October 2026 that it has raised a $60 million Series B at a $1 billion valuation, led by FirstMark, Fortune reported. The new funding brings the amount Daytona has raised to about $91 million, according to Fortune.

Tech.eu reported that the company provides infrastructure to Anthropic, OpenAI, NVIDIA, Cursor and Cognition. Burazin told Fortune that about $50 million of the round came from existing investors.

Burazin said Daytona’s revenue run rate grew 25-fold between January and September, and that it can configure a new sandbox for an AI agent in 60 milliseconds, Fortune reported.

“I strongly believe that there will be a CPU crunch,” Burazin told Fortune.

Connecting the Coverage

The two rounds landed on the same day as Eka Robotics’ $150 million Series A at a $1.45 billion post-money valuation, reported by TechCrunch.

Blackwall also announced a $100 million round at a $2.2 billion valuation for its bot-filtering tools, Tech.eu reported, which we covered in our piece on the October push to secure AI agents.

For earlier funding in robotics and models for the physical world, see our piece on AMI Labs, G42 and this month’s robot rounds. Daytona sells sandboxes for AI agents of the kind discussed in our pieces on agent governance and on the Hark free-pizza ordering agent.

The Structural Read

As we read it, Arda’s pitch is speed of change on the factory floor: McGrew told CNBC that retooling automation for a new design takes three to six months, and Arda says it helps engineers build assembly lines much faster.

As we read it, the investor list matters: McGrew wrote that Altimeter Capital, Accel and Khosla Ventures co-led, and CNBC reported that Altimeter’s Apoorv Agrawal led the round.

As we read it, Daytona is betting on CPUs as well as GPUs: Burazin told Fortune he expects a CPU crunch as companies run more agents.

Three Implications

A VALUATION Arda raised a $160 million Series A at a $1.5 billion valuation, McGrew said, with total funding of $232 million.

A DESIGN PARTNER McGrew wrote that Arda has spent the last year building with Anduril as its design partner.

A SECOND UNICORN Daytona raised $60 million at a $1 billion valuation, led by FirstMark, Fortune reported.

The Business Engineer Lens

This story maps onto the Business Engineer framework Enterprise AI: From Software to Substrate.

The framework says “Enterprise SaaS is migrating from “tool you buy” to “infrastructure you’re woven into.””

As we read it, an agent embedded in how assembly lines are designed, and a sandbox layer that agents run on, are both bids to become that kind of infrastructure. The framework was published in December 2025 and does not discuss Arda or Daytona.

What Is Not Established

CNBC reported $230 million raised, while McGrew wrote that the Series A is $160 million and that total funding is $232 million. We report McGrew’s own figures for the round and note the difference.

Neither Arda nor Daytona disclosed revenue figures. Daytona’s 25-fold run-rate growth is the company’s own figure, and Burazin’s CPU outlook is his view.

The Bottom Line

Arda, the startup of former OpenAI executive Bob McGrew, has raised a $160 million Series A at a $1.5 billion valuation to speed up how manufacturers build assembly lines, McGrew said, while agent-cloud startup Daytona raised $60 million at a $1 billion valuation, Fortune reported.