When an LLM edits code or summarises a document, its output often copies spans from the prompt. Prompt lookup decoding exploits this with no draft model: find the last few generated tokens earlier in the text, and propose whatever followed them as a draft for the target model to verify in one pass.
Unlock this and every premium problem across all tracks — plus hidden-test grading, advanced AI engineering modules and new content every week.
Start 7-day free trial