Cerebras Systems, maker of wafer-size chips that do AI processing, raised $1.1 billion in funding at an $8.1 billion valuation.
The round was a Series G funding round at an $8.1 billion post-money valuation. Fidelity Management & Research Company and Atreides Management led the round. It included significant participation from Tiger Global, Valor Equity Partners, and 1789 Capital, as well as existing investors Altimeter, Alpha Wave, and Benchmark.
As the fastest inference provider in the world, Cerebras will use these funds to expand its pioneering technology portfolio with continued inventions in AI processor design, packaging, system design and AI supercomputers. In addition, it will expand its U.S. manufacturing capacity and its U.S. data center capacity to keep pace with the explosive demand for Cerebras products and services.
“From our inception we have been backed by the most knowledgeable investors in the industry. They have seen the historic opportunity that is AI and have chosen to invest in Cerebras,” said Andrew Feldman, cofounder and CEO of Cerebras, in a statement. “We are proud to expand our consortium of best-in-world investors.”
Inference momentum for AI infrastructure
Cerebras has experienced extraordinary growth since launching its inference service in late 2024. Over the past year, Cerebras has held the performance crown every single day, routinely demonstrating speeds more than 20 times faster than Nvidia GPUs on open-source and closed source models, the company said.
“Since our founding, we have tested every AI inference provider across hundreds of models. Cerebras is consistently the fastest,” said Micah Hill-Smith, CEO of benchmarking firm Artificial Analysis, in a statement.
Cerebras said its performance advantage has led to massive demand. New real-time use cases – including code generation, reasoning, and agentic work – have increased the benefits from speed and the increased the cost of being slow, driving customers to Cerebras. Today, Cerebras is serving trillions of tokens per month, in its own cloud, on its customers premises, and across leading partner platforms.
In 2025, AI leaders including AWS, Meta, IBM, Mistral, Cognition, AlphaSense, Notion and hundreds more have chosen Cerebras, joining enterprises and governments, including GlaxoSmithKline, Mayo Clinic, the US Department of Energy, the US Department of Defense.
Individual developers have also chosen Cerebras for their AI work. On Hugging Face, the leading AI hub for developers, Cerebras is the No. 1 inference provider with over five million monthly requests.
Citigroup and Barclays Capital acted as joint placement agents for the transaction.