Trending Now - Openai Unveils MRC Protocol to Enhance AI Supercomputing Collaboration

WHO:

MarkTechPost - OpenAI, AMD, Broadcom, Intel, Microsoft, NVIDIA

WHAT:

MarkTechPost - OpenAI introduced the Multipath Reliable Connection (MRC) protocol.

MarkTechPost - The MRC protocol improves GPU networking performance and resilience in large-scale AI training clusters.

Techmeme - The MRC protocol has been in development for two years.

MarkTechPost - The protocol allows for the construction of supercomputers with over 100,000 GPUs using only two tiers of Ethernet switches.

HOW:

MarkTechPost - The MRC protocol spreads packets across hundreds of paths simultaneously and recovers from network failures in microseconds.

(UPDATED May 7, 2026 09:51 UTC)

OpenAI has unveiled a groundbreaking new protocol called the Multipath Reliable Connection, or MRC, which significantly enhances GPU networking performance and resilience in large-scale AI training clusters. This innovative protocol, developed over the past two years, enables the creation of supercomputers equipped with more than 100,000 GPUs using just two tiers of Ethernet switches. By spreading packets across hundreds of paths at once, the MRC protocol can recover from network failures in mere microseconds, marking a major advancement in AI infrastructure.