Unlocking large scale AI training networks with MRC (Multipath Reliable Connection)
OpenAI Blog / 5/5/2026
📰 NewsDeveloper Stack & InfrastructureSignals & Early Trends
Key Points
- OpenAI has introduced MRC (Multipath Reliable Connection), a new supercomputer networking protocol aimed at improving performance and resilience for large-scale AI training clusters.
- The protocol is being released through the Open Compute Project (OCP), indicating an open ecosystem approach for adoption and standardization.
- By leveraging multipath reliable connectivity, MRC is designed to better handle network issues that can degrade distributed training throughput and stability.
- The announcement positions network-layer reliability as a key factor for scaling AI training effectively across large compute environments.
OpenAI introduces MRC (Multipath Reliable Connection), a new supercomputer networking protocol released via OCP to improve resilience and performance in large-scale AI training clusters.
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