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阶跃星辰发布旗舰基座模型 Step 5 Preview,登陆 OpenRouter 热榜第一,主打 AI 编程与软件工程,支持 1M token 上下文。用户实测将其接入 Claude Code,用 Three.js 生成可交互 3D 小岛,效果媲美 Opus 5.5 且成本更低。
StepFun's Step 5 Preview模型登上OpenRouter Trending榜首,用户实测用一张截图即生成完整可运行的Web应用,成本低于50美分,并展示了自主修复代码与自写测试的能力。
分享者介绍了如何用Step 5 Preview模型实现全屏滚动网站效果的工作流,并称赞其多模态与编码能力,该模型现已上线OpenRouter。
StepFun, a Chinese AI lab, has released Step 5 Preview, which matches the performance of Kimi K3 at one-third the cost, marking its entry into the AI frontier.
Stepfun's new AI model, Step 5 Preview, has been leaked, showing a significant version jump from 3.7 to 5.0 with major performance improvements.