Cerebras shares just took a sharp hit.

$CBRS fell nearly 20% after a report suggested that OpenAI is using Nvidia GPUs for its “Ultrafast” inference workloads, rather than relying entirely on Cerebras hardware.

That matters because Cerebras has built much of its investment story around one thing: extremely fast AI inference.

The company previously announced a multi-year partnership with OpenAI involving up to 750 MW of Cerebras computing capacity, with the deal later described as worth more than $20B.

So when investors hear that Nvidia may also be powering some of OpenAI’s low-latency workloads, the immediate question is obvious:

How much of the inference opportunity will actually go to Cerebras?

There is an important detail, though.

This report does not mean OpenAI has abandoned Cerebras. Sam Altman reportedly described Cerebras as a close partner and said the companies are continuing to work together on AI speed.

Cerebras is also coming into this with meaningful momentum. Its cloud business has been growing rapidly, and the company has announced hundreds of megawatts of contracted data-center capacity.

So I wouldn’t read this as a simple Nvidia vs. Cerebras story.

To me, the bigger question is whether AI inference becomes a multi-chip market, where Nvidia handles some workloads while specialized hardware like Cerebras takes others.

The next few months could tell us a lot about who actually gets the inference workload behind the fastest AI products.

For CBRS investors, that allocation may matter more than this one-day selloff.
#CerebrasSinksNearly20%OnReportNvidiaToPowerOpenAI
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