DeepSeek releases DSpark framework accelerating V4 generation 60-85%

DSpark is a speculative decoding framework that speeds up per-user generation of DeepSeek-V4 by 60-85% over MTP-1. The open-source release includes checkpoints DeepSeek-V4-Pro-DSpark and DeepSeek-V4-Flash-DSpark, reusing existing V4 weights with an attached draft module.