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Compare speculative decoding variants: draft model, Medusa, EAGLE, and lookahead decoding.

Speculative decoding speeds up generation without changing the output distribution. The signal is knowing how draft-model, self-drafting (Medusa/EAGLE), and lookahead approaches differ in where the guesses come from.

Updated Aug 2026 · Grounded in real Applied AI Engineer interview loops and written to a senior-engineer editorial bar.

Speculative decoding speeds up generation without changing the output distribution. The signal is knowing how draft-model, self-drafting (Medusa/EAGLE), and lookahead approaches differ in where the guesses come from.

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