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Harvey 表示,與 Trajectory Labs 合作在 Legal Agent Bench 上對 Nemotron 3.5 Lightning 做後訓練

中文摘要

其結果宣稱,在 held-out LAB tasks 上 agent 表現從 0% 提升到 8.3%,勝過 Opus 4.6 與更大的 post-trained Nemotron 3 Ultra;同時九個法律實務領域都有改善且無退步。貼文還稱平均模型輸出從 90k token 降到 37k token,使 reward-per-token 提升 2.4 倍。

一龍馬判讀

法律 AI 團隊會在意的是,後訓練可能同時改善任務成功率與輸出成本,而不只是讓模型更會寫長答案。限制是 8.3% 本身仍低,且 LAB 的任務設計、評分方式與實際法律風險未在貼文中完整揭露。

原文節錄

NVIDIA AI · @NVIDIAAI

Harvey (@harvey) We post-trained @NVIDIAAI Nemotron 3.5 Lightning on Legal Agent Bench with @trajectorylabs .…

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Harvey (@harvey) We post-trained @NVIDIAAI Nemotron 3.5 Lightning on Legal Agent Bench with @trajectorylabs . Here's what we found: 1) Post-training improved agent performance from 0% to 8.3% on held-out LAB tasks, beating both Opus 4.6 and the much larger post-trained Nemotron 3 Ultra. 2) Performance improved across nine practice areas with no regressions. 3) Post-training reduced average model output from 90k to 37k tokens, increasing the model's reward-per-token by 2.4x. Through our collaboration with NVIDIA and Trajectory we’re committed to pushing the frontier of legal intelligence and cost efficiency with open weight models. Deep dive: — https://nitter.net/harvey/status/2087166789876945338#m

收錄日期
2026-08-13
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Nitter RSS(公開貼文)
抓取時間
2026/08/13 06:12(台北)