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New SPEED method slashes long-context AI inference costs by 25%

Researchers have developed a new method called Shallow Prefill, Deep Decoding (SPEED) to make long-context inference in language models more efficient. SPEED reduces the computational cost by only processing prompt tokens in the lower layers of the model during the prefill phase, while keeping all layers active during the decoding phase. This approach maintains benchmark quality while significantly decreasing inference time and memory usage for models handling extended contexts. AI

影响 This technique could significantly reduce the computational cost of running large language models with long contexts, making them more accessible and practical for various applications.

排序理由 This is a research paper detailing a novel method for improving AI model inference efficiency. [lever_c_demoted from research: ic=1 ai=1.0]

在 arXiv cs.AI 阅读 →

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New SPEED method slashes long-context AI inference costs by 25%

报道来源 [1]

  1. arXiv cs.AI TIER_1 English(EN) · Jungsuk Oh, Hyeseo Jeon, Hyunjune Ji, Kyongmin Kong, Jay-Yoon Lee ·

    Shallow Prefill, Deep Decoding: Efficient Long-Context Inference via Layer-Asymmetric KV Visibility

    arXiv:2605.06105v1 Announce Type: new Abstract: Long-context inference in decoder-only language models is costly because long prompts are processed during Prefill, cached at every layer, and repeatedly attended to during autoregressive Decode. We introduce \emph{Shallow Prefill, …