ChipsThe story, in brief
Unlocking large scale AI training networks with MRC (Multipath Reliable Connection)
OpenAI just open-sourced the networking layer that powers trillion-parameter training. Here's why every AI infrastructure team is about to care.
The KeyNews take
Why it matters
OpenAI's MRC protocol addresses a critical bottleneck in large-scale AI training—cluster networking resilience and throughput. Open-sourcing via OCP signals a shift toward collaborative infrastructure standards and hints at OpenAI's confidence in its own training capacity lead.
The key facts
5 to knowOpenAI introduced MRC (Multipath Reliable Connection) protocol
Released via Open Compute Project (OCP) for industry adoption
Targets large-scale AI training cluster resilience and performance
Infrastructure-level innovation, not model capability
Published May 5, 2026
Go to the source
OpenAI Blogopenai.com
Publisher excerpt: 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.