StepFun· @StepFun_ai · X·· 3 小时前AI 评分57
AI 导读
阶跃星辰 Step 5 Preview 在 DeepInfra 上线（day zero），采用开放权重。该模型为 600B MoE、27B 激活，支持 1M token 上下文和文本加视觉输入，FP8 定价为每 1M tokens 输入 $1.00、输出 $2.70、缓存 $0.05，面向 coding、frontend、finance 等长程 Agent 场景。
正文
A 1M-token context window, endless possibilities.
Excited to see Step 5 Preview live on @DeepInfra! Thanks to the team for making it easier for developers to build with Step 5.
What will you build first?
Step 5 Preview from @StepFun_ai is live on DeepInfra, day zero. 600B open-weight MoE, 27B active. 1M context, text + vision. FP8. $1.00 in / $2.70 out / $0.05 cached per 1M tokens. Built for long-horizon agents: coding, frontend, finance. What would you load into 1M tokens first?在 X 查看被引用的帖子
来源：StepFun · x.com