StepFun
AI models for language and multimodal applications
CORE INFO
StepFun, officially known as Shanghai Jieyue Xingchen Intelligent Technology Co., Ltd., develops large-scale AI models for language and multimodal applications, serving industries like consumer electronics and automotive. Their technology is integrated into millions of devices, enhancing user experiences with advanced AI capabilities.
- StepFun raised over 5 billion yuan (approximately $718 million) in a Series B+ round in January 2026, marking the largest single financing event in China's large-model sector over the past year.technode.com
- By the end of 2025, StepFun's models were integrated into over 42 million devices through partnerships with major Chinese smartphone brands, including Oppo, Honor, and ZTE.citynewsservice.cn
- StepFun's voice models and "AgentOS" are featured in Geely's cars, with deployment expected to surpass one million vehicles by the end of 2026.citynewsservice.cn
WHY WE WOULD WORK AT STEPFUN
Innovative AI Solutions
Join a team pioneering large-scale language and multimodal models, like the trillion-parameter Step-2, that are transforming how technology interacts with users.
Collaborative Culture
Work alongside former Microsoft experts in a dynamic environment that fosters innovation and teamwork, driving advancements in AI technology.
Substantial Funding
Benefit from the security and growth potential of a company that raised over 5 billion yuan in its Series B+ round, positioning itself as a leader in the AI sector.
Global Impact
Contribute to AI applications integrated into over 42 million devices and enhance automotive systems, making a tangible difference in everyday technology.
Cutting-Edge Technology
Engage with advanced AI models like Step-3.5-Flash, which supports tool use and boasts a 256k token context window, pushing the boundaries of what's possible.
Recognition and Growth
Be part of a rapidly growing company recognized as one of China's 'AI Tigers,' with opportunities for personal and professional development in a booming industry.
MARKET AND TRACTION
TOTAL ADDRESSABLE MARKET
KEY METRICS
✦ KEY METRICGROWTH TACTICS
NOTABLE CUSTOMERS
MARKET POSITION
PRODUCT AND TECH
Large Language Models
StepFun develops large-scale language models, including the Step-2 model with a trillion parameters, enabling advanced text understanding and generation capabilities across various applications.
Multimodal Models
The company specializes in multimodal models like Step-1.5V, which can process and generate text, video, and audio, enhancing user interaction and experience in diverse environments.
Image Generation Technology
StepFun's Step-1X model focuses on image generation, providing innovative solutions for visual content creation and integration in consumer electronics and other sectors.
Mixture-of-Experts Model
The Step-3.5-Flash model utilizes a mixture-of-experts architecture with 196 billion parameters, optimizing performance for complex tasks while maintaining efficiency in processing.
Automotive AI Solutions
StepFun's AI technology, including voice models and the AgentOS, is integrated into automotive systems, significantly improving in-car voice assistants and intelligent functionalities.