# ModelExpress: Distributing Model Artifacts at the Speed of Light

DevFeed: [ModelExpress: Distributing Model Artifacts at the Speed of Light](<https://devfeed.tech/articles/modelexpress-distributing-model-artifacts-at-the-speed-of-light-6885.md>)

Original publisher: [Read original article](<https://developer.nvidia.com/blog/modelexpress-distributing-model-artifacts-at-the-speed-of-light/>)

Author: Elizabeth Goodman

Published: 2026-07-24T16:45:00Z

Content type: article

Language: en

Sources: [NVIDIA Developer](<https://devfeed.tech/sources/nvidia-developer.md>), [NVIDIA Technical Blog](<https://devfeed.tech/sources/nvidia-technical-blog.md>)

Topics: [model-deployment](<https://devfeed.tech/topics/model-deployment.md>), [GPU](<https://devfeed.tech/topics/gpu.md>), [P2P](<https://devfeed.tech/topics/p2p.md>), [Amazon S3](<https://devfeed.tech/topics/amazon-s3.md>), [autoscaling](<https://devfeed.tech/topics/autoscaling.md>), [Caching](<https://devfeed.tech/topics/caching.md>), [cloud-infrastructure](<https://devfeed.tech/topics/cloud-infrastructure.md>)

Tags: [agentic-ai-generative-ai](<https://devfeed.tech/tags/agentic-ai-generative-ai.md>), [ai-foundation-models](<https://devfeed.tech/tags/ai-foundation-models.md>), [ai-inference](<https://devfeed.tech/tags/ai-inference.md>), [autoscaling](<https://devfeed.tech/tags/autoscaling.md>), [data-center-cloud](<https://devfeed.tech/tags/data-center-cloud.md>), [developer-tools-techniques](<https://devfeed.tech/tags/developer-tools-techniques.md>), [dynamo-triton](<https://devfeed.tech/tags/dynamo-triton.md>), [featured](<https://devfeed.tech/tags/featured.md>), [gpu](<https://devfeed.tech/tags/gpu.md>), [inference](<https://devfeed.tech/tags/inference.md>), [inference-performance](<https://devfeed.tech/tags/inference-performance.md>), [jit](<https://devfeed.tech/tags/jit.md>), [llms](<https://devfeed.tech/tags/llms.md>), [local](<https://devfeed.tech/tags/local.md>), [model](<https://devfeed.tech/tags/model.md>), [s3](<https://devfeed.tech/tags/s3.md>), [scale](<https://devfeed.tech/tags/scale.md>), [speed](<https://devfeed.tech/tags/speed.md>), [streaming](<https://devfeed.tech/tags/streaming.md>)

## AI overview

NVIDIA ModelExpress (MX) reduces model-serving startup time by locating compatible model weights at the fastest available source. It prioritizes direct GPU-to-GPU transfer over P2P RDMA from an existing serving replica, while using object or local storage for initial bootstrapping and fallback. The article also describes reusing JIT kernel caches and distributing reinforcement-learning weight updates.

## Source excerpt

Every byte moved has a cost. As model checkpoints grow to hundreds of gigabytes or even a terabyte, that cost adds up quickly. To make things even worse, moving...