New model adds engram and simplified mHC; community digs into KV cache tradeoffs
stochasticchasm · x · 2026-09-11
A researcher notes a new model incorporates the engram mechanism plus an mHC simplification — both expected additions — with mega-mhc flagged as worth investigating. Discussion also covers KV cache tradeoffs at 500K context: within a request the KV cache must live in HBM/RAM, but between requests, re-prefilling large chunks is negligible in FLOPS. Whether dspark was used in pre-training awaits the paper.
Related event: Leaked DeepSeek V4.1 Flash Tech Report Reveals KV Cache-Obsessed Flagship(44 posts)→
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