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Cerebras Systems Shares Slip Nearly 20% Following Reports of Nvidia Powering OpenAI

Cerebras Systems shares plummeted nearly 20% in private markets following reports that rival Nvidia will supply critical hardware to power OpenAI.

By CryptoPress
October 3, 2026
  • Cerebras Systems experienced a sharp decline of nearly 20% in private market valuations amid mounting market competition.
  • The sell-off was reportedly triggered by news that artificial intelligence giant OpenAI plans to utilize Nvidia hardware for its expanding infrastructure.
  • The development underscores the intense battle for market dominance in the high-performance AI chip sector.

Shares of AI hardware startup Cerebras Systems plummeted by nearly 20% in private secondary markets following widespread reports that rival chipmaker Nvidia is slated to power major upcoming infrastructure for OpenAI. The sudden downturn reflects shifting investor sentiment within the high-stakes artificial intelligence hardware sector.

According to market participants familiar with the private transactions, the valuation adjustment for Cerebras occurred swiftly as traders weighed the implications of OpenAI deepening its technological reliance on Nvidia. The dominant GPU manufacturer continues to capture the lion’s share of enterprise and hyper-scaler AI deployments, leaving competitors fighting for secondary market share.

Cerebras, known for its massive wafer-scale engine chips designed to accelerate machine learning workloads, has been positioning itself as a high-performance alternative to traditional GPU architectures. However, securing long-term contracts with industry leaders like OpenAI remains critical for startups attempting to challenge Nvidia’s entrenched market monopoly.

As the artificial intelligence landscape matures, tech investors are closely monitoring how hardware supply chains and chip allocations will impact valuations across both public and private markets. Neither Cerebras nor OpenAI immediately issued public statements addressing the specific private share price movements.

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