Optical interconnect startup Eliyan raises $145M in funding to solve the AI chip cluster connectivity crunch
What happened
Eliyan Corp., a Silicon Valley startup focused on optical interconnect technology, closed a $145 million Series C funding round. The investment round was led by Seligman Ventures, with Cisco Ventures and Lumentum among the backers. This latest funding round pushes Eliyan’s valuation to $1 billion, officially making it a unicorn. The company aims to tackle connectivity challenges in AI chip clusters by replacing traditional copper interconnects with optical links.
Why it matters
As AI models grow larger, chip clusters face bottlenecks on data transfer speed, energy consumption, and heat generation caused by conventional electrical connections. Optical interconnects use light to move data between chips, significantly reducing latency and power use while supporting higher bandwidth. Eliyan’s successful funding signals growing investor confidence that optical tech will be critical to scaling next-generation AI hardware. Faster, more efficient communication between AI chips can speed up training times, lower operational costs, and reduce thermal load in data centers.
What to watch next
The key marker will be how quickly Eliyan can integrate its optical interconnects into AI hardware ecosystems and secure partnerships with major chip makers or data center operators. Competitors in optical interconnect and chip packaging will be under pressure to accelerate their innovation cycles. Investors should also watch how Eliyan’s technology impacts the cost structure of running large AI workloads, as a reduction in connectivity overhead could shift hardware purchasing priorities. Finally, broader adoption hinges on proof of reliability and compatibility at scale in customer environments.
AI Quick Briefs Editorial Desk
