OpenAI Acquired Patents from Altman-Backed AI Chip Startup Following Failed Acquisition
Resumo
OpenAI adquiriu patentes da startup de chips Rain AI, fundada em 2017 e apoiada pelo investidor Sam Altman, após a empresa falhar em encontrar comprador; OpenAI havia assinado carta de intenção para comprar chips da Rain por US$ 51 milhões, mas nunca concretizou a compra.

There’s no question that some of the companies OpenAI CEO Sam Altman has invested in—like chipmaker Cerebras and nuclear fusion firm Helion Energy—have benefitted from doing business with the firm Altman leads. However, just because Altman is an investor in a startup doesn’t mean that OpenAI will be that helpful.
Take AI chip startup Rain AI, which counts Altman as an investor. The eight-year old firm all but closed its doors recently, with almost all employees leaving, after a failed effort to find a buyer. OpenAI looked but ended up buying some of Rain’s patents. That was about all OpenAI did.
To understand the history, we have to go back a bit in time. Rain was founded in 2017, aiming to develop a new kind of chip. Its patents give a sense of its ambitions: the patents focused on how to do AI computations closer to a chip’s memory, rather than shuttling data between separate memory and processing units, which can be slower and more power-intensive, according to a person briefed on the decision and patent filings.
Altman invested in a seed round in 2018. The year after that, OpenAI signed a nonbinding letter of intent with Rain AI to spend $51 million on the startup’s chips when they became available. But OpenAI never ended up buying any of those chips because the agreement was predicated on a successful pilot of the chips, said a person with knowledge of the agreement.
Last February, Rain AI ran into trouble fundraising and began to explore potential sale options or selling its intellectual property or talent, two people with knowledge of the discussions said. Rain began having conversations with OpenAI staffers including Richard Ho, then OpenAI’s head of hardware, they said.
Ho told Rain executives that he wasn’t interested in the company’s intellectual property, which meant OpenAI didn’t want to do an acquisition, but could be interested in its talent, the people said. Rain executives were then told to put every Rain employee into a spreadsheet, rank them and lay out their strengths and weaknesses, the people said.
OpenAI didn’t end up pursuing the hires, and Rain AI ended up laying off nearly all its employees in June 2025, the person said. A few months later, despite saying it wasn’t interested in the IP, OpenAI acquired a number of patents from the defunct chip startup, the people said. (It couldn’t be learned how much they paid for the patents.)
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