Sources: Zyphra, which trains and runs inference for its open-weight models on AMD hardware, is raising a $500M Series B at a valuation of at least $5B (Anna Tong/Forbes)

<a href="https://www.forbes.com/sites/annatong/2026/05/19/artificial-intelligence-lab-zyphra-raising-500-million-to-challenge-nvidia-dominance/"><img align="RIGHT" border="0" hspace="4" src="http://www.techmeme.com/260519/i63.jpg" vspace="4" /></a> <p><a href="https://www.techmeme.com/260519/p63#a260519p63" title="Techmeme permalink"><img height="12" src="http://www.techmeme.com/img/pml.png" style="border: none; padding: 0; margin: 0;" width="11" /></a> Anna Tong / <a href="http://www.forbes.com/">Forbes</a>:<br /> <span style="font-size: 1.3em;"><b><a href="https://www.forbes.com/sites/annatong/2026/05/19/artificial-intelligence-lab-zyphra-raising-500-million-to-challenge-nvidia-dominance/">Sources: Zyphra, which trains and runs inference for its open-weight models on AMD hardware, is raising a $500M Series B at a valuation of at least $5B</a></b></span>&nbsp; &mdash;&nbsp; The Series B round, which chipmaker AMD is participating in, is expected to value the startup at least $5 billion.</p>