Step 5 Preview now available on AI Gateway
Step 5 Preview now routes through Vercel's AI Gateway—1M-token context, unified pricing, no platform markup for coding agents and knowledge work.

Why it matters
StepFun's Step 5 Preview model is now available via Vercel's AI Gateway with native integration for coding agents (Claude Code, Cursor, Codex). The 1M-token context window and unified API routing with cost tracking and zero-data-retention options lower friction for teams already using Vercel infrastructure.
The key facts
13 to knowStep 5 Preview: text + image input, 1M-token context window
Native integration for Claude Code, Codex, Cursor, and other coding agents
Vercel AI Gateway: unified API, usage tracking, retries, failover, routing rules
Zero platform fee on inference; provider pricing passed through with no markup
BYOK (Bring Your Own Key) support included
Model name: stepfun/step-5-preview; requires latest Vercel CLI
StepFun Step 5 Preview now available on Vercel AI Gateway
1M-token context window; supports text and image input
Model name: stepfun/step-5-preview
Compatible with Claude Code, Codex, Cursor, and other coding agents via latest Vercel CLI
AI Gateway provides unified API with usage tracking, retries, failover, routing rules, budgets, custom reporting, Zero Data Retention (BYOK) support
No platform fee on inference; pricing reflects provider rates with no markup
Integration requires setup via `vercel ai` and agent selection
The story so far
Earlier coverage of this storyline
- Microsoft AI models are now available on AI GatewayVercel Blog
- FLUX 3 Image now available on AI GatewayVercel Blog
- Mistral Large 4 now available on AI GatewayVercel Blog
- This story
Go to the source
Vercel Blogvercel.com
Publisher excerpt: , 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…