Step 5 Preview now available on AI Gateway
StepFun's Step 5 Preview model is now available on Vercel's AI Gateway, supporting text and image input with a 1M-token context window optimized for agentic coding, professional knowledge work, and financial analysis. The model can be accessed via the unified AI Gateway API for tracking usage, cost management, and performance optimization.
, StepFun's flagship model, is now available on . It's built for agentic coding, professional knowledge work, and financial analysis, from building apps and debugging code to research and analytical reports.Step 5 PreviewAI Gateway
Step 5 Preview supports text and image input with a 1M-token context window, allowing you to work with large codebases, a stack of documents, or screenshots and charts in a single request.
Use as the model name:stepfun/step-5-preview
For other coding agents such as Claude Code, Codex, Cursor, and more, install the latest Vercel CLI and run setup:
Then select in the agent. See the for details.stepfun/step-5-previewcoding agents guide
Try Step 5 Preview in the .model playground
AI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime. It includes built-in , , , , and more.custom reportingZero Data Retention supportbudgets for API keysrouting rules
AI Gateway reflects provider pricing with no markup and does not charge a platform fee on inference, including on (BYOK) requests.Bring Your Own Key
You can view available on AI Gateway.all language models
Source: original entry ↗
More from Vercel
Follow Vercel to get its new changes in your feed and email digest.
Agents can now buy domains with the Vercel CLI
Vercel CLI now enables agents to discover, check availability, and initiate domain purchases through structured commands, with purchase confirmation remaining under user control via interactive terminal or dashboard approval.
New Pro teams default to 30-day deployment retention
Pro teams now default to a 30-day deployment retention period to balance keeping recent history available while reducing storage costs. You can configure a longer retention period in team settings if needed.
Deployment Storage billing begins for existing Pro teams
Pro teams will now be charged for Deployment Storage and Functions Storage at $0.10 per GB-month. The default deployment retention window changes to 30 days, with deployments older than 30 days deleted automatically unless you adjust your retention settings beforehand.