A rumor spread across social media on July 21, 2026, claiming that Anthropic, the AI company behind the Claude chatbot, is buying a robotics startup called Physical Intelligence. The claim started when tech blogger Robert Scoble posted it on X over the weekend, sparking what TechCrunch described as a frenzy across AI-focused social media.

Physical Intelligence CEO Karol Hausman told employees the reports were not true, according to The Information. He sent the denial through a Slack message that included a gif of a character from 'The Office' shaking her head no. Lachy Groom, who co-founded Physical Intelligence, did not respond to a request for comment sent by TechCrunch on Monday evening, July 20, 2026.

The rumor got attention because the two companies have a real history together. Anthropic and Physical Intelligence held acquisition talks in spring 2026, according to The Information. At the same time, there was a separate report that Physical Intelligence was trying to raise $1 billion in new funding at an $11 billion valuation TechCrunch. Physical Intelligence has already raised more than $1 billion total. The startup was valued at $5.6 billion in a funding round reported in November 2025 Bloomberg, up from an earlier $400 million round in November 2024 that included backing from Jeff Bezos and OpenAI Reuters. OpenAI has been a backer of Physical Intelligence since at least March 2024 Bloomberg.

Physical Intelligence makes a AI system called π0.5 that serves as a brain for robots. It is one of the more widely used systems of its kind in robotics research. What makes it special is that the system can figure out tasks it was never explicitly taught TechCrunch. That ability to adapt to new situations makes the company valuable, because the biggest AI companies are increasingly looking beyond software that processes text and code, toward software that can control physical machines.

For Anthropic, wanting a robotics capability fits with what the company is already doing. Anthropic published something called Project Fetch in November 2025, which tested whether its AI assistant Claude could help ordinary people program a robot dog, and followed with a second phase in June 2026 TechCrunch. Anthropic has also been buying companies: it made four known acquisitions in 2026 and confidentially filed for an IPO on June 1, 2026 TechCrunch.

OpenAI, Anthropic's biggest rival, has been on a similar path. It has acquired at least 17 companies since 2023 and filed for its own IPO a week after Anthropic's June 1 filing. On robotics specifically, OpenAI shut down its robotics group in 2021, rebuilt a humanoid robotics lab in San Francisco in 2024, and Sam Altman officially announced 'OpenAI Robotics' in late May 2026 TechCrunch.

The broader picture here is that the line between companies that make AI software and companies that build robots is disappearing, and this trend has been speeding up throughout 2026. The competition between Anthropic and OpenAI now extends to robotics as a new battleground.

There is an inherent tension worth flagging. OpenAI is both an investor in Physical Intelligence and a direct competitor through its own OpenAI Robotics division. If Anthropic bought Physical Intelligence, two rival AI companies would end up sharing ownership of a robotics firm whose technology is widely used in research. That would complicate any claim that either company operates independently.

The timing also connects to the IPO filings. Both Anthropic and OpenAI filed confidentially to go public within a week of each other. A robotics acquisition, whether real or just rumored, helps tell a story that each company offers a broad platform of capabilities, which matters when they are preparing to sell shares to the public. Hausman's gif-based denial may settle the question for now, but the reasons for these companies to combine forces have not gone away.

For now, the rumor is unconfirmed. Scoble's X post started the fire, but the spring 2026 acquisition talks reported by The Information gave it real fuel. Whether those talks resume, or whether Physical Intelligence goes ahead with its reported $1 billion raise at an $11 billion valuation, will shape what happens next in the race to build AI that can act in the physical world.