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Anthropic 發布 Claude Fable 5.1,關鍵基準得分較前代翻倍

2026-09-02 03:36:47

ChainCatcher 消息,Anthropic 於 9 月 1 日發布 Claude Fable 5.1 與 Claude Mythos 5.1,這是自 6 月 9 日 Fable 5 推出以來 Anthropic 對該模型系列的首次更新。Anthropic 稱,新模型是面向編程和知識工作最先進的模型。在 Terminal-Bench-Science 0.1 基準上,Fable 5.1 錄得 52.6% 的通過率,較 Fable 5 的 24.7% 翻倍以上,也領先 Opus 5 的 29%;在 Terminal-Bench 4 上,Fable 5.1 得分 55.8%,高於 Fable 5 的 42% 與 Opus 5 的 52.3%。

Fable 5.1 與 Mythos 5.1 為同一底層模型,僅安全過濾器不同。Fable 5.1 對所有 Claude 賬戶開放,而 Mythos 5.1 仍僅限通過 Anthropic 網絡安全驗證計劃和生命科學驗證計劃審核的專業人士使用。定價方面,Fable 5.1 每百萬 token 輸入收費 10 美元、輸出 50 美元,是 Opus 5 的兩倍。快取讀取成本降低 75%,典型工作負載成本可下降約 25%,高 agentic 工作負載最多下降 45%。

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