<div id="readability-page-1"><div> <p id="speakable-summary">SiFive, a company founded in 2015 by the UC Berkeley engineers who created an open source chip design, has landed a $400 million oversubscribed round that values the company at $3.65 billion.</p> <p>This deal is interesting for a bunch of reasons. For one, SiFive’s RISC-V open chip design is based on the RISC processor, not Intel’s x86 or ARM, the two major types of CPUs that currently feed Nvidia’s GPU computer system AI empire.</p>   <p>Also, Nvidia was investor in this round, alongside a long list of VCs, private equity, and hedge funds. The round was led by Atreides Management, founded by former Fidelity investor bigwig Gavin Baker. (Atreides was also an investor in Cerebras Systems $1 billion round). Other investors in the round include Apollo Global Management, D1 Capital Partners, Point72 Turion, T. Rowe Price Sutter Hill Ventures, and others.</p> <p>SiFive’s business model is like Arm’s was in years gone by — it licenses its chip designs to those who modify them for their own needs and does not sell the chips themselves. (In March, Arm changed its model when it launched the first-ever chip it manufactured, an AI chip, developed with Meta with customers including OpenAI, Cerebras, and Cloudflare.)</p> <p>SiFive stands in rarified air with chip designs that are open, not proprietary, as well as neutral, not reliant on specific customers. In fact, SiFive hasn’t raised since March 2022, Pitchbook estimates, when it brought in $175 million led by Coatue Management at a pre-money valuation of $2.33 billion. Intel Capital, Qualcomm Ventures, Aramco Ventures, were part of that round.</p> <p>RISC-V has been, until recently, better known as a chip for smaller uses, like embedded systems. But with this cash and Nvidia’s attention, SiFive is moving into CPUs for AI data centers. SiFive’s designs will work with Nvidia’s CUDA software and its NVLink Fusion, a rack server system that lets different CPUs plug into Nvidia’s “AI factory.”</p> <p>In other words, as rivals Intel and AMD seek to compete with Nvidia’s GPU, Nvidia is backing an 11-year-old startup that can design CPUs on an open and completely alternate technology.  </p> <div> <div>  <p>Techcrunch event</p> <div>  <p><span>San Francisco, CA</span> <span>|</span> <span>October 13-15, 2026</span></p>  </div> </div> </div>       </div></div>

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<p>SiFive, founded in 2015, has secured a $400 million funding round, valuing the company at $3.65 billion. The investment, led by Atreides Management and supported by Nvidia and other major investors, focuses on SiFive's RISC-V open chip design, which is gaining traction in AI data centers. Unlike traditional proprietary models, SiFive licenses its designs, positioning itself uniquely in the market. This funding marks a significant shift as SiFive aims to compete with established players like Intel and AMD in the CPU space for AI applications.</p>

- SiFive has secured a $400 million funding round, achieving a valuation of $3.65 billion, with significant investment from Nvidia and other major firms.  
- The company focuses on RISC-V open chip designs, diverging from traditional x86 and ARM architectures, and aims to provide CPUs compatible with Nvidia's CUDA and NVLink Fusion.  
- With this funding, SiFive is transitioning from embedded system chips to AI data center CPUs, positioning itself uniquely in the competitive landscape against Intel and AMD.

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Nvidia-backed SiFive hits $3.65 billion valuation for open AI chips