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階躍Step 5正式發佈,10月15日開源

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階躍星辰正式發佈旗艦模型 Step 5 Preview。它采用稀疏 MoE 架構,總參數 600B,每次僅激活 27B,支持 100 萬 Token 上下文和圖文輸入。API 和 Studio 已經全量開放,完整模型權重將在 10 月 15 日放出。此前 Artificial Analysis 已經提前跑完評測。Step 5 Preview 在 Intelligence Index 得到 44 分,與 Kimi K3 Max 持平。AA 當前測得其輸出約 100 Token/s,每項任務成本 0.71 美元;Kimi K3 Max 為 2 美元。官方重點展示瞭它跑長任務的能力。階躍讓 Step 5 Preview 連續最多 24 小時自主優化一套 H100 GPU 內核。模型會自己改代碼、跑測試、比較結果,再繼續迭代。約 22 小時後達到 508 TFLOPS,同一實驗中的 Claude Opus 5 為 493 TFLOPS。另一項 24 小時實驗裡,Step 5 Preview 自己設計後訓練數據,把 Qwen3-30B-A3B 在 AIME24 上的準確率從 53.3% 提到 60%,與 Claude Opus 5 持平,同時消耗更少的標註 Token。

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来源https://raidenwire.com/fast/783419.html