阶跃星辰开放 Step 5 Preview 权重
Step 5 Preview is now open weights.
AI 摘要
阶跃星辰（StepFun）宣布 Step 5 Preview 开放权重，BF16 和 FP8 权重已上线 Hugging Face 和 ModelScope，并附技术博客。
正文 · AI 翻译
Step 5 Preview is now open weights.
BF16 and FP8 weights are live on Hugging Face and ModelScope, together with our technical blog.
• Sparse MoE: 600B total, 27B active per token • 1M-token context window • Native text and vision input • Built for long-horizon agentic work: coding, software engineering, professional knowledge work and finance
Frontier intelligence, open weights. Build what's next.
Hugging Face: https://huggingface.co/stepfun-ai/Step-5-Preview ModelScope: https://modelscope.ai/models/stepfun-ai/Step-5-Preview GitHub: https://github.com/stepfun-ai/Step-5-Preview
原文
Original Title
Step 5 Preview is now open weights.
Source
阶跃星辰 StepFun
Site
x.com
Published
2026-10-15T13:00:01.000Z