# SpecPilot: Autonomous Algorithm Discovery and Systems Optimization for Speculative Decoding > Source: > Published: 2026-11-04 03:33:47+00:00 Speculative decoding accelerates memory-bound LLM decoding with a lightweight drafter, and parallel drafters extend this speedup by drafting a whole block in one forward pass. However, it remains unclear whether their released systems (stock) attain the full speedup that parallel drafting permits. W