- Tencent WorkBuddy integrates StepFun's Step 5 Preview as its latest flagship model, with an exclusive two-week free access period starting immediately.
- Step 5 Preview uses a sparse mixture-of-experts architecture with 600 billion total parameters and approximately 27 billion active per token, balancing performance with inference cost.
- The model targets deep research, data analysis, document generation and multi-step agent workflows within enterprise productivity environments.
- Step 5 Preview ranks among the top three open-source models globally on the Artificial Analysis index and topped OpenRouter's trending list last week.
Integration Details
Tencent's full-scenario AI office workstation WorkBuddy announced the integration of StepFun's latest flagship model Step 5 Preview on October 12, making it available to all users with an exclusive limited-time free access window of two weeks. The integration expands WorkBuddy's capabilities in complex office tasks including deep research, information retrieval, data analysis, and document and presentation generation.
WorkBuddy leverages Step 5 Preview's reasoning and agent capabilities to continuously execute multi-step complex tasks, moving beyond simple chat interactions toward sustained workflow automation within an enterprise productivity environment.
Model Architecture and Capabilities
Step 5 Preview is built on a sparse mixture-of-experts architecture with 600 billion total parameters, activating approximately 27 billion parameters per token. According to StepFun's official documentation, the model handles text, image and video inputs across a context length of one million tokens, enabling extended reasoning over large document sets and prolonged agentic workflows.
The model has been optimized for AI programming, software engineering, professional knowledge work and financial applications. Its core capabilities include long-context understanding and reasoning across multiple documents, multi-programming-language support for development tasks, multi-step agent workflows using external tools, and multimodal analysis of charts, screenshots and video content.
Benchmark Positioning and Developer Adoption
On the Artificial Analysis global benchmark, Step 5 Preview achieved a composite intelligence index score of 44, placing it among the top three open-source models worldwide. The model also topped OpenRouter's trending list last week and ranked second globally in daily token usage, indicating significant developer adoption and real-world usage activity.
The integration gives StepFun a direct channel to accumulate real-world application scenarios and user feedback through Tencent's enterprise productivity platform, while WorkBuddy gains access to a frontier-class domestic foundation model for complex office tasks.
Sources & context
Go to the original material. Company claims remain attributed to their sources.
01
