Context1.0M
Step 5 Preview is StepFun's flagship model for agentic work, built on a sparse Mixture-of-Experts architecture (27B active / 600B total parameters). It performs strongly in software engineering and professional knowledge work, with particular strength in finance.
Tokens, last 14 days
Prompt1.61K
Completion3.93K
Total5.55K
Performance
Latency (p50)1.10 s
Throughput (p50)59.1 tok/s
Pricing
Input$0.50/M tokensmarket price $1.00/M tokens
Output$1.35/M tokensmarket price $2.70/M tokens
Cached input$0.05/M tokensmarket price $0.10/M tokens
Features
Inputtext, image
Outputtext
APIResponses, Chat Completions, Messages
StepFun