阶跃星辰 Step 5 Preview 上线 Featherless AI
Great to see Step 5 Preview live on @FeatherlessAI!
阶跃星辰宣布 Step 5 Preview 已在 Featherless AI 上线，主打前沿级智能、有竞争力的成本效率和更低的开发者使用门槛。据 Featherless AI 介绍，该开源权重模型采用 600B 稀疏 MoE、每 token 激活 27B，在 Artificial Analysis 智能指数上与 Kimi K3 持平，面向长周期智能体任务，在软件工程与金融等专业知识工作上达到前沿水平，按 Artificial Analysis 数据其单任务成本约为 Claude Opus 5.5 的 1/6，目前以 FP8 精度在 Featherless 上提供服务。
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Step 5 Preview 以 600B 稀疏 MoE 和约 1/6 单任务成本进入开源权重阵营，可对照其与 Kimi K3 的定位差异。
主题
查看原帖Step 5 Preview is here. @StepFun_ai's new open-weights model sets a new Pareto frontier, matching Kimi K3 on the @ArtificialAnlys Intelligence Index! It’s built for long-horizon agent work, with frontier-level results on software engineering and professional knowledge work, especially finance. - 600B sparse MoE, 27B active per token - ~1/6 the cost per…
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Step 5 Preview is here. @StepFun_ai's new open-weights model sets a new Pareto frontier, matching Kimi K3 on the @ArtificialAnlys Intelligence Index! It’s built for long-horizon agent work, with frontier-level results on software engineering and professional knowledge work, especially finance. - 600B sparse MoE, 27B active per token - ~1/6 the cost per task of Claude Opus 5.5, per Artificial Analysis Now on Featherless, served at FP8. https://t.co/mznI5gFzHe
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Great to see Step 5 Preview live on @FeatherlessAI!
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