Cerebras Targets $26.6 Billion Valuation in Blockbuster IPO as AI Chip Race Heats Up
AI chip maker Cerebras filed to sell 28 million shares at $115–$125, targeting a $26.6B valuation and $3.5B raise on Nasdaq. OpenAI holds warrants for 33M+ shares via a $1B loan; Sam Altman, Greg Brockman, and Ilya Sutskever are listed as angel investors.
AI chip startup Cerebras Systems filed to sell 28 million shares at $115 to $125 per share, targeting a $26.6 billion market cap and raising up to $3.5 billion in what would be the largest technology IPO of 2026 so far. The company plans to list on Nasdaq and released an updated S-1 on May 4 disclosing the pricing range. The offering would be a significant step up from Cerebras's $23 billion Series H valuation from February 2026.
The IPO
Cerebras makes AI training and inference chips designed specifically for large language models, with its flagship WSE-3 chip containing 4 trillion transistors — roughly 57x the transistor count of Nvidia's H100. The company's architecture is built around a single wafer-scale chip rather than the multi-chip packaging Nvidia and AMD use, enabling significantly higher memory bandwidth for transformer-scale models. The company's primary customer base spans AI labs, government contractors, and enterprise AI teams that require lower latency or higher throughput than Nvidia's standard stack delivers.
The company filed an original S-1 in 2024, but the IPO was delayed after questions arose around a major investor's ties to Saudi Arabia — G42, the Abu Dhabi AI conglomerate, had previously been a significant backer. Those concerns have been resolved, with the updated filing reflecting a cleaner ownership structure.
The OpenAI Connection
The most closely watched element of the Cerebras filing is OpenAI's position. In December 2024, OpenAI loaned Cerebras $1 billion secured by warrants that allow OpenAI to acquire more than 33 million shares at IPO — potentially worth more than $4 billion at the high end of the pricing range. Additionally, multiple OpenAI leaders are disclosed as angel investors: CEO Sam Altman, President Greg Brockman, former Chief Scientist Ilya Sutskever, and board member Adam D'Angelo. The depth of OpenAI's financial entanglement with Cerebras raises structural questions about competitive independence in the AI chip market.
If the IPO prices at the high end and OpenAI exercises its warrants, OpenAI will hold a stake worth more than $4 billion in its most important non-Nvidia chip supplier — a vertical integration that gives OpenAI both financial upside and influence over Cerebras's product roadmap. For competing AI labs and hyperscalers, this creates a chip supplier with a potential conflict of interest.
TechCrunchWhat to Watch
The Cerebras IPO will be a litmus test for investor appetite for non-Nvidia AI infrastructure. Cerebras has real revenue and a clear product differentiation story, but its customer concentration is high and its wafer-scale architecture, while impressive, has not achieved the ecosystem depth that makes Nvidia's CUDA moat so durable. The first quarter of post-IPO earnings will be critical: if revenue diversification beyond the OpenAI relationship is demonstrated, Cerebras will trade as a genuine Nvidia alternative; if not, it will trade as an OpenAI infrastructure dependency with public market risk.
Want every major funding round the day it lands? Subscribe →
