AMD, Broadcom, Meta, Microsoft, NVIDIA, and OpenAI Launch Optical Compute Interconnect Consortium for Open AI Infrastructure Standard
Key Takeaways
- ▸Six leading tech companies established an industry consortium to create an open optical interconnect specification, addressing copper connectivity limitations in AI infrastructure
- ▸The OCI specification supports multiple form factors (pluggable, on-board, co-packaged optics) and offers a scalable roadmap reaching 3.2Tbps per fiber with power efficiency comparable to copper
- ▸The open standard enables multi-vendor interoperability and disaggregation, reducing integration risk and accelerating development cycles for next-generation AI hardware
Summary
Six major technology companies—AMD, Broadcom, Meta, Microsoft, NVIDIA, and OpenAI—have established the Optical Compute Interconnect (OCI) Multi-Source Agreement (MSA) group to create an open specification for optical-based AI infrastructure interconnects. The consortium addresses fundamental limitations of traditional copper-based connectivity as large language models scale toward super intelligence, shifting the paradigm toward optical scale-up architectures that offer superior bandwidth density, power efficiency, and system scalability.
The OCI specification combines non-return to zero (NRZ) modulation and wavelength division multiplexing (WDM) optical technology, transitioning from module-centric to silicon-centric models for tighter integration of optics with compute and networking silicon. The standardized roadmap supports multiple generations of hardware, from OCI GEN1 (200Gbps/direction) to OCI GEN2 (400Gbps/direction) technologies, with a path to 3.2Tbps per fiber and beyond, while maintaining power targets comparable to legacy copper solutions.
By establishing interoperable optical interface protocols, the OCI MSA enables a plug-and-play ecosystem that allows hyperscalers to disaggregate processor units and scale-up switches through a common optical physical layer. This open standard approach dramatically reduces integration risk, shortens development cycles, and provides the AI infrastructure supply chain with a clear, multi-generational deployment roadmap across vendors.
Editorial Opinion
The formation of the OCI MSA represents a critical industry shift toward standardized, multi-vendor optical interconnects—a necessary evolution as AI infrastructure scales beyond copper's physical and thermal limitations. By unifying competitors around an open specification, the consortium mirrors successful patterns in semiconductor standardization and positions optical interconnects as the foundational technology for next-generation AI systems. This collaborative approach could accelerate innovation across the supply chain while reducing lock-in risks for hyperscalers deploying massive AI clusters.
