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Old Zhang's AI Learning
Old Zhang's AI Learning
May 1, 2026 · Artificial Intelligence

DeepSeek‑V4 Local Deployment: How SGLang Overcomes the Architecture Challenges

The article analyzes DeepSeek‑V4's architectural innovations—including mixed sparse attention, mHC, and native FP4 weights—explains SGLang's ShadowRadix, HiSparse, and in‑graph speculative decoding solutions, presents benchmark gains, provides Docker deployment steps, and warns of key pitfalls for long‑context inference.

DeepSeek-V4HiSparseSGLang
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DeepSeek‑V4 Local Deployment: How SGLang Overcomes the Architecture Challenges