StepFun (阶跃星辰)
StepFun (阶跃星辰) is a Chinese artificial intelligence technology company focused on the research and development of large language models and multimodal foundation models. The company's core products are the Step series of large models, and it is dedicated to exploring general artificial intelligence technology and its practical applications, offering model capabilities to enterprises and developers. Founded by a technical team with backgrounds in large model research, it is a representative company in China's next-generation AI foundation model sector.
Timeline (last 90 days)
StepFun's Step 5 Preview has launched on the WorkBuddy platform and is free for a limited time, with a parameter scale of 600 billion, 27 billion activated, and support for a 1 million context.
StepFun's flagship model Step 5 Preview is officially available on Vercel AI Gateway.
Tencent's all-scenario AI office workbench WorkBuddy has integrated StepFun's Step 5 Preview model and is offering users an exclusive limited-time free trial for two weeks.
StepFun officially positions Step 5 Preview as a model optimized for scenarios including AI programming, software engineering, professional knowledge work, and finance.
Step 5 Preview is StepFun's newly released next-generation flagship foundation model, using a sparse MoE architecture with a total parameter count of 600 billion, activating approximately 27 billion parameters per token.
A preview version of StepFun's Step 5 appeared on the model platform OpenRouter during the same week.
Stepstar has open-sourced the terminal coding agent Step Code V 0.10, licensed under MIT, with support for macOS, Linux, and WSL.
StepFun AI is backed by Alibaba investment, is referred to as one of China's largest AI funding rounds, and belongs to the Alibaba ecosystem alongside the Qwen team.
StepFun AI (阶跃星辰) has launched the Step 5 preview model.
The large language model Step 5 Preview from StepFun has reportedly entered the Pareto frontier of Artificial Analysis.
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All Facts (13)
阶跃星辰的投资方包括腾讯、阿里等互联网巨头，成立不到两年完成了多轮融资
85%Unverified阶跃星辰的投资方包括腾讯、阿里巴巴等科技巨头，估值一度超过数十亿美元
80%Unverified阶跃星辰成立于2023年，由前微软全球副总裁姜大昕创立，总部位于上海
60%UnverifiedStepFun officially positions Step 5 Preview as a model optimized for scenarios including AI programming, software engineering, professional knowledge work, and finance.
50%UnverifiedStep 5 Preview is StepFun's newly released next-generation flagship foundation model, using a sparse MoE architecture with a total parameter count of 600 billion, activating approximately 27 billion parameters per token.
50%UnverifiedStepFun AI is backed by Alibaba investment, is referred to as one of China's largest AI funding rounds, and belongs to the Alibaba ecosystem alongside the Qwen team.
50%UnverifiedThe AI Six Little Dragons include MiniMax, Zhipu AI, Moonshot AI, Baichuan Intelligence, 01.AI, and StepFun.
50%UnverifiedStepFun's Step 5 Preview has launched on the WorkBuddy platform and is free for a limited time, with a parameter scale of 600 billion, 27 billion activated, and support for a 1 million context.
50%UnverifiedStepFun's flagship model Step 5 Preview is officially available on Vercel AI Gateway.
50%UnverifiedTencent's all-scenario AI office workbench WorkBuddy has integrated StepFun's Step 5 Preview model and is offering users an exclusive limited-time free trial for two weeks.
50%UnverifiedA preview version of StepFun's Step 5 appeared on the model platform OpenRouter during the same week.
50%UnverifiedStepstar has open-sourced the terminal coding agent Step Code V 0.10, licensed under MIT, with support for macOS, Linux, and WSL.
50%UnverifiedStepFun AI (阶跃星辰) has launched the Step 5 preview model.
50%