Knowledge note

Speculative Decoding Systems

Topic hub for draft-model and diffusion-based speculative decoding systems.

Updated September 16, 2026Confidence: High

Speculative Decoding Systems

  • EAGLE — Feature-level autoregressive drafting.
  • EAGLE-2 — Dynamic draft-tree expansion and reranking.
  • EAGLE-3 — Scaled feature fusion and training-time test simulation.
  • DFlash — Block-diffusion speculative decoding.
  • DSpark — Confidence-scheduled speculative decoding.