StepFunAPI Platform

Step 3.7 Flash A High-Efficiency Flash Model For Real-World Agents

Multimodal Understanding & Action/Web & Visual Search Enhancement/Reliable Tool Use & Orchestration/Agent Ecosystem Compatibility

Learn More

Join partners. Accelerate AI application landing

KiloLemonadeNOUS ResearchModaldeepinfra

A Powerful Platform for Building AI Apps

Step API · Stable · High-Performance · Easy Integration. Leading models and tools to accelerate the deployment of your next AI app.

Large Language Model

Step 3.7 Flash

High-efficiency Flash model for production-grade agents

Multimodal Understanding & Action

Understands images across the full range — product UIs, documents, charts, and natural scenes — then writes code or calls tools to act on what it sees.

Web & Visual Search Enhancement

Web search reaches further — more sources, deeper follow-up. Visual search recognizes what other systems don't — long-tail entities, freshly emerged concepts.

Reliable Tool Use & Orchestration

Drives terminals, browsers, Office tools, search, and beyond — staying coherent however long the run gets. Less drift, fewer broken toolcalls, fewer failed runs.

Agent Ecosystem Compatibility

Works with mainstream harnesses (Claude Code, KiloCode, Hermes Agent, OpenClaw) and tool-calling protocols (MCP, Skills) — lower integration cost, less workflow rewiring.

Build AI Applications More Easily

Connect models, tools, and workflows to explore the next generation of AI apps.

Studio

Model Experience Center

Explore—no coding needed. Our models and APIs.

StepFun Model Experience Center main viewModel parameter settings panel