DeepSeek-V4.1-Flash pushes KV cache compression 4x
Read original source →arxiv.org
DeepSeek's technical report describes a 40-layer model that activates only 20 layers during prefill (8B prefill params, 16B decode params) and compresses KV cache 4x using FP4 cache, CSA2 cross-layer compression, and sparse-attention indexer optimizations.
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