Ayar Labs, which is developing a way to link AI chips directly with optical connections, raised $150M, an extension of its $500M Series E in March 2026
THE SO WHAT
Another $150M into Ayar Labs on top of a $500M Series E says the bottleneck is now chip-to-chip bandwidth, not just more GPUs. If you're planning multi-rack or multi-cluster AI systems, you should be modeling when electrical interconnects break and what an optical roadmap would demand from your data center design.
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