Silicon’s next layer, built on light.

Lightwire, the first chip-integrated optical interconnect, designed to push modern compute denser, faster, and farther.

The fastest chips shouldn't be constrained by their slowest connections

Modern compute is bottlenecked by the connections between its chips, not by the chips themselves: memory limited to one row deep on each side of the GPU, layouts forced around signal length, and standards multiplying between millimeter and meter.
founded out of
MIT
SMART

See what we’re building

Learn more about how we're bringing optical interconnects from the lab to silicon.

100x

performance from a millimeter to a meter

Lightwire moves data at two-micron link pitch from a millimeter inside a chip to a meter across a rack. One link, one standard, holding chip-internal performance across the entire chip-to-rack range.

Designed to drop-in

Lightwire replaces electrical wires one-to-one inside the same interposer that already connects GPUs to high-bandwidth memory. No new architecture, no new packaging, no new assembly step.

Optical interconnects: built-in, not bolt-on

Lightwire is fabricated as a layer of silicon, on the same wafer lines that already produce modern chips. The optical layer is part of the chip itself, inheriting silicon's yield, density, and economics from day one.

Speed of light, at the scale of silicon

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