阶跃星辰1M上下文MoE登陆OpenRouter
推荐指数 62.0 NO. 018 · 2026.10.09
发布2026/10/08Score75Comments23
为什么值得看
StepFun推出Step 5 Preview，27B激活/600B总参数的稀疏MoE模型，主打长上下文代码与金融文档的Agent任务。中国大模型厂商开始通过OpenRouter打入国际开发者市场，定价和性能数据值得对比测试。
编辑判断
StepFun选择OpenRouter而非自建API渠道，说明中国模型厂商出海时优先借道现有开发者生态而非重投基础设施。这会给Together、Fireworks等模型托管商带来压力——它们的核心价值正在被上游模型方+下游聚合平台两头挤压。
对读者来说，1M上下文+MoE架构的组合目前仍是稀缺资源，Claude 3.7 Sonnet的200K和Gemini 1.5 Pro的2M之间有个明显的定价空档。如果你在处理百万token级别的代码库分析或财报批量处理，可以把它放进A/B测试名单，但需注意目前仅单一provider，生产环境稳定性存疑。
社区反馈
意见分歧 24 条评论
核心争论：Artificial Analysis 排名是否可信，模型是否有独特场景优势
It doesn't look competitive along any dimension: https://artificialanalysis.ai/models/step-5#intelligence-com... Better luck next time.
It's fast. The average speed is 115 tokens/sec according to OpenRouter. I haven't tested the model to see how it is in practice, but I'd certainly pay a little extra for faster inference. Edit: Though the average latency of 1.5s isn't very low, so it might not be that fast in practice for agent
Using Artificial Analysis Model | Reasoning | Intelligence Index | Artificial Analysis million output tokens for the intelligence index -|-|-|- Step 5 | ? | 44 | 160 GLM 5.3 | Max | 45 | 210 MiMo V2.6 Pro | ? | 46 | 140 Kimi K3 | Max | 44 | 160 Qwen Max 0902 | ? | 45 | 190 DeepSeek 4.1 Flash | Max |