Cerebras Systems drops 4% following Culper Research short report

Culper Research issued a short report casting doubt on Cerebras Systems' flagship AI chip technology, leading to a 4% drop in the company's shares. The report asserts that Cerebras's massive chips have a limited operational lifespan of 1.5 to 2.5 years, a significant issue for the business model. Culper questions Cerebras's claims about a novel connector material, stating that the company actually uses a 1980s material called PariPoser, which Paricon Technologies had already confirmed.

Additionally, Culper alleges that Cerebras intentionally programs its chips to run continuous dummy operations to prevent them from cooling down, which could cause the chips to break. The report also found decompilation evidence of Cerebras's software containing a unique label for these dummy tokens, differentiating it from competitors like Nvidia, Google, and Intel.

This workaround, according to Culper, accelerates the degradation of the wafer-scale chips in the field. Cerebras has yet to respond to these allegations.