DEEPSEEK-V4.1-FLASH-1017 (HUGGING FACE REPO)

Summary from the TLDR AI newsletter

DeepSeek-V4.1-Flash-1017 delivers substantial improvements across reasoning, coding, agentic tasks, and visual benchmarks. It also reduces task execution time and output length, advancing the performance-cost Pareto frontier across multiple agent harnesses. DeepSeek-V4.1-Flash combines cross-layer KV cache reuse in Compressed Sparse Attention 2 with FP4 KV caching, reducing its global KV cache footprint to 890 bytes per token. Its persistent KV cache footprint is roughly 1/8 of that of DeepSeek-V4-Flash. The model delivers substantially better performance than the baseline despite its much smaller KV cache footprint.