A weekend rumor that Anthropic was acquiring robotics startup Physical Intelligence tore through AI Twitter, surviving even a denial from the startup’s CEO. The twist: the two companies really did hold acquisition talks this spring, per The Information. And there’s a complication, OpenAI is itself an investor in the target.

Key Takeaways

• A rumor claimed Anthropic was acquiring Physical Intelligence
• The startup’s CEO denied it, but not very forcefully
• The two firms did hold acquisition talks this spring, per reports
• Physical Intelligence was valued around $11 billion in recent talks
• OpenAI is an investor in the startup, complicating any deal

How the Rumor Started

It began with a single post. Tech blogger Robert Scoble set off the frenzy with a weekend post on X claiming Anthropic was acquiring Physical Intelligence, and the rumor spread exceedingly fast, even after a denial from the startup’s CEO, according to TechCrunch.

The target isn’t a minor player. Physical Intelligence was co-founded by Lachy Groom, a rising investor-operator in Silicon Valley, has raised more than $1 billion, and its π0.5 model is among the more widely used robot brains in robotics research.

Its valuation is steep. The company was reportedly in talks this spring for another $1 billion round at an $11 billion valuation, which is part of why a rumored acquisition drew so much attention so quickly.

The Not-Quite Denial

The startup pushed back, but softly. According to The Information, Physical Intelligence CEO Karol Hausman told employees the reports weren’t true via a Slack message containing a gif of a character from “The Office” shaking her head no.

That’s a notably light rebuttal. TechCrunch pointed out it wasn’t the world’s most vigorous denial, and co-founder Lachy Groom did not respond to a request for comment, leaving the door open to interpretation.

The muted response fed the speculation. A gif is easy to walk back, and the absence of a firm on-the-record statement is exactly the kind of ambiguity that keeps a rumor alive rather than killing it.

The Kernel of Truth

Here’s why the rumor had legs. It wasn’t completely spurious, Anthropic and Physical Intelligence actually did hold acquisition talks this spring, according to The Information.

So Scoble may have been directionally right. As TechCrunch framed it, he may have gotten the specifics wrong without being wrong that something had happened, which is a crucial distinction between “a deal is done” and “talks occurred months ago.”

The important caveat remains. Talks happening in the spring is not the same as an acquisition happening now, and nothing has been confirmed as an active or completed deal, so the current status is genuinely unresolved.

Why Robotics, Why Now

The strategic logic is clear even if the deal isn’t. The likeliest reason for the interest is that physical-world understanding may be a prerequisite for superintelligent systems, and no amount of internet text can substitute for it.

Anthropic has dabbled through research. Rather than building a hardware lab, it ran Project Fetch last November, testing how much Claude could help non-experts program a robot dog, and a June follow-up found a newer model completed the tasks roughly 20 times faster than the best human-plus-Claude team a year earlier.

Buying a team would be a shortcut. Acquiring an established robotics group would let Anthropic skip years of foundational work, which is exactly the kind of capability-to-revenue move both it and OpenAI have made repeatedly this year.

The OpenAI Complication

This is where it gets tangled. OpenAI is itself an investor in Physical Intelligence, so it isn’t a peripheral player but a stakeholder in a company its chief rival was reportedly in talks to buy.

The investor overlap runs deep. Physical Intelligence’s early backers look a lot like OpenAI’s own, including Khosla Ventures and Thrive Capital, and Founders Fund, another major OpenAI investor, was reportedly involved in the startup’s newest round.

That raises pointed questions. It’s unclear whether OpenAI’s investment came with information rights or a right of first refusal over a sale to a competitor, the kind of protective terms big strategic investors sometimes negotiate, and OpenAI didn’t respond to TechCrunch’s questions.

OpenAI has its own robotics push, too. It shut its early robotics group in 2021, revived the effort in 2024, and CEO Sam Altman later made “OpenAI Robotics” official, describing a near-term focus on infrastructure robots and a long-term goal of a personal robot for everyone.

Why It Matters

The episode is a snapshot of AI’s frenzied deal environment. With both Anthropic and OpenAI on buying sprees and both preparing to go public, even a thinly sourced rumor about a hot robotics target can dominate the discourse for days.

The robotics land grab is the real signal. Whether or not this specific deal happens, the interest underscores a growing belief that embodied AI, systems that understand and act in the physical world, is the next frontier both labs feel they can’t afford to cede.

For now, treat it as an unconfirmed rumor with a real kernel. Talks happened, a deal hasn’t been confirmed, the target’s denial was soft, and OpenAI’s stake muddies any clean outcome. The one certainty is that robotics has become a battleground the AI giants are willing to fight over.

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