Neurophos | 5,528 followers on LinkedIn. Photonic ExaFLOPS AI chips | Neurophos makes the OPU, a photonic AI chip that delivers the performance of a 3,000-pound server in the size and power envelope of a single GPU. Neurophos’ novel optical “transistor” unlocks terawatt-scale compute at a gigawatt-scale footprint, fitting millions of weights in the area of a postage stamp, that would otherwise occupy a full square-meter.