This week, Cerebras Systems, a company specializing in AI chips, revealed it has secured $1 billion in new funding, achieving a valuation of $23 billion. This marks a dramatic rise from the $8.1 billion valuation the competitor to Nvidia held just six months prior.

The investment round was spearheaded by Tiger Global, but a significant portion of the capital originated from Benchmark Capital, one of Cerebras's earliest supporters. According to an individual with knowledge of the transaction, the prominent Silicon Valley firm contributed at least $225 million to this latest round. Benchmark's initial investment in the 10-year-old company dates back to 2016, when it led Cerebras's $27 million Series A funding.

To facilitate this substantial investment, Benchmark established two distinct funding vehicles, both named 'Benchmark Infrastructure,' as indicated by regulatory documents. The source confirmed these vehicles were created specifically for the Cerebras deal. Benchmark itself has declined to comment on the matter.

Cerebras distinguishes itself in the market through the remarkable physical size of its processors. Its flagship product, the Wafer Scale Engine chip introduced in 2024, measures about 8.5 inches per side and integrates 4 trillion transistors onto a single silicon piece. For context, this chip is fabricated from almost an entire 300-millimeter silicon wafer, which is the foundational disc used in all semiconductor manufacturing. While conventional chips are small sections cut from these wafers, Cerebras utilizes nearly the complete circle.

This unique design incorporates 900,000 specialized cores operating in parallel. This architecture allows the system to handle AI computations without the need to transfer data between multiple, separate chips—a common performance bottleneck in traditional GPU clusters. The company states this enables AI inference tasks to run over 20 times faster than rival systems.

The new capital infusion arrives as the Sunnyvale, Calif.-based Cerebras builds momentum in the competitive AI infrastructure sector. Just last month, the company entered into a multi-year agreement valued at over $10 billion to supply 750 megawatts of computing capacity to OpenAI. This partnership, extending through 2028, is intended to help OpenAI achieve quicker response times for complex AI queries. (It is worth noting that OpenAI CEO Sam Altman is also an investor in Cerebras.)

Cerebras asserts that its systems, powered by its proprietary AI-designed chips, outperform those built with Nvidia's technology. However, the company's journey toward an initial public offering has faced complications due to its past association with G42, an AI firm based in the United Arab Emirates. G42 represented 87% of Cerebras's revenue in the first half of 2024.

Historical connections between G42 and Chinese technology companies prompted a review by the U.S. Committee on Foreign Investment, which delayed Cerebras's original IPO plans and led to the withdrawal of an earlier filing in early 2025. By the end of last year, G42 was no longer listed among Cerebras's investors, removing a major obstacle. Cerebras is now reportedly preparing for a public market debut in the second quarter of 2026.