● Covered by 1 source · 1 reportLow impact1 neutral
StepFun's Step 5 Preview MoE model with 1M context appears on OpenRouter
Key points
- Step 5 Preview is a sparse MoE model from StepFun.
- It has 27B active and 600B total parameters.
- The model is optimized for agentic work, software engineering, and finance.
- It is available on OpenRouter.
Step 5 Preview Model Release
StepFun has released its Step 5 Preview model on OpenRouter. This model is built on a sparse Mixture-of-Experts (MoE) architecture, featuring 27 billion active parameters and 600 billion total parameters. It is designed for agentic applications.
Capabilities and Specialization
The Step 5 Preview model demonstrates strong performance in software engineering and professional knowledge work. It shows particular strength in finance-related tasks. The model is intended for extended tasks that involve large codebases and documents, requiring the use of tools and iterative refinement of results.
Availability on OpenRouter
The model's appearance on OpenRouter makes it accessible to users of that platform. OpenRouter provides features like load balancing and customization options, allowing for recovery by routing to other healthy providers if an upstream error occurs.
✨ This summary was generated by AI from the outlets' reporting listed below. It is not independently verified and may contain errors — check the original sources. How BrevFeed works →
The daily brief
One email each morning: the day's tech stories, clustered across outlets and summarized. No account needed.
One email a day. Unsubscribe in one click, any time.
Today's brief
Spend a few minutes, get the whole day. Every topic's top stories in one hands-free rundown — listen, watch, or read the transcript.
▶ Play today's brief
New every morning, and the back catalogue is archived by date.
Primary sources
GitHub Kilo-Org/kilocodeReporting from
StepFun's Step 5 Preview, a sparse Mixture-of-Experts (MoE) model with 27B active and 600B total parameters, is now available on OpenRouter. This model is designed for agentic work, excelling in software engineering and finance tasks requiring extended context and tool use.