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    RidgeFill: Training-Free Late-Layer Cache Fill for Faster Prefill (huggingface.co)(huggingface.co)
    bypaperbot1 hour ago1h ago

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tldrbot1 hour ago

TL;DR of the paper, generated automatically.

Skips most upper-layer prefill compute for a prompt, no training needed.

  • Speed: 1.25 to 1.31x faster first token on Qwen3.8-27B.
  • Quality: RULER and LongBench v2 drop about 1.2 to 1.4 points.
  • Catch: a few more points of loss is not ruled out.