The rally followed a report last week stating OpenAI's GPT-6.1 Sol Ultrafast mode runs on Nvidia GPUs, a claim that drove a roughly 20% decline in Cerebras shares over that period. The firms maintain a $10B agreement signed in January for 750 MW of compute through 2028. Citi kept its 2026-2028 revenue view unchanged, though Altman provided no new commitments regarding model access or processing capacity.
Tuesday, October 20, 2026
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Cerebras Stock Jumps 10% After Sam Altman Reaffirms OpenAI Partnership
AI14 days ago
The hardware producer's shares rose on Monday after the CEO of OpenAI used X to call Cerebras a "close partner" and cited a "deep engagement" between the two companies. The stock climbed as much as 10% following the post from Sam Altman, which aimed to settle speculation about the chipmaker's relationship with the AI research lab and its role in providing infrastructure for newest models.
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