[Research] JetSpec: Speculative Decoding with Parallel Tree Drafting Enables up to 9.64x Lossless LLM Inference Speedup with more than 1000TPS

We find speculative decoding can push LLM generation latency to extreme by co-optimizing drafting cost and drafting quality with causal parallel tree drafting. JetSpec reaches up to 9.64× end-to-end speedup on MATH-500 and 4.58× on open-ended chat while keeping lossless. With CUDA graph and kernel o