NVIDIA says ModelExpress cuts DeepSeek-V4 Pro startup from 8 minutes to under 2
NVIDIAAI · x · 2026-07-25
NVIDIA says it cut DeepSeek-V4 Pro startup time from 8 minutes to under 2 minutes by moving model weights over the fastest path to GPU memory using GPU-to-GPU RDMA.
- The company says the result comes from NVIDIA ModelExpress (MX), a weight distribution and cache management service inside NVIDIA Dynamo.
- MX reuses kernel caches and lets inference workers fetch updated weights directly from other GPUs via NIXL, avoiding centralized broadcasts.
- NVIDIA says the same approach also speeds up inference and RL post-training by keeping weight movement off the critical path.
Related event: NVIDIA Slashes DeepSeek-V4 Pro Startup Time to Under 2 Minutes(4 posts)→
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