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每隔几个月，人工智能领域就会经历类似的模式。一个具有更大上下文窗口的新模型问世，社交媒体上便会充斥着“RAG 已死”的宣言。Meta 最近的突破再次引发了这场讨论——Llama 4 Scout 惊人的 1000 万（理论上）token 上下文窗口代表着一次真正的飞跃。 ingFang SC", system-ui, -apple-system, "system-ui", "Helvetica Neue", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;text-align: justify;text-indent: 0em;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;white-space: normal;text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;background: none 0% 0% / auto no-repeat scroll padding-box border-box rgb(255, 255, 255);color: rgb(34, 34, 34);line-height: 1.75em;letter-spacing: 0em;border-style: none none none solid;border-width: 1px 1px 1px 5px;border-color: rgb(0, 0, 0) rgb(0, 0, 0) rgb(0, 0, 0) rgb(248, 57, 41);border-radius: 0px;align-items: unset;box-shadow: none;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;overflow: unset;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;visibility: visible;box-sizing: border-box !important;overflow-wrap: break-word !important;">RAG 的初衷ingFang SC", system-ui, -apple-system, "system-ui", "Helvetica Neue", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;text-align: justify;text-indent: 0em;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;white-space: normal;text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;background: none 0% 0% / auto no-repeat scroll padding-box border-box rgb(255, 255, 255);color: rgb(34, 34, 34);line-height: 1.75em;letter-spacing: 0em;border-style: none none none solid;border-width: 1px 1px 1px 5px;border-color: rgb(0, 0, 0) rgb(0, 0, 0) rgb(0, 0, 0) rgb(248, 57, 41);border-radius: 0px;align-items: unset;box-shadow: none;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;overflow: unset;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;visibility: visible;box-sizing: border-box !important;overflow-wrap: break-word !important;">为什么我们仍然需要 RAG（并且永远需要）
 ingFang SC", system-ui, -apple-system, "system-ui", "Helvetica Neue", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;text-align: justify;text-indent: 0em;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;white-space: normal;text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;background: none 0% 0% / auto no-repeat scroll padding-box border-box rgb(255, 255, 255);color: rgb(34, 34, 34);line-height: 1.75em;letter-spacing: 0em;border-style: none none none solid;border-width: 1px 1px 1px 5px;border-color: rgb(0, 0, 0) rgb(0, 0, 0) rgb(0, 0, 0) rgb(248, 57, 41);border-radius: 0px;align-items: unset;box-shadow: none;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;overflow: unset;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;visibility: visible;box-sizing: border-box !important;overflow-wrap: break-word !important;">警惕错误的二分法  |
