JieYueXingChen

Overview

Founded in April 2023, StepFun is an AI company with the mission of 'intelligence leaps, multiplying everyone's potential tenfold.' The company is committed to developing super models, having completed the Step series of large models from 100 billion to 1 trillion parameters, reaching industry-leading levels in image understanding, multi-turn instruction following, mathematical reasoning, and text creation.

The Step series covers language, speech, and multimodal models. Step 3.7 Flash is specifically designed for real-world agent workflows, supporting stable tool calling and natively parsing PDFs, tables, and charts. It also has open weights, allowing private deployment and fine-tuning. StepFun's open platform provides a high-performance, easy-to-integrate Step API to help developers quickly build AI applications, while the Studio platform connects models, tools, and workflows to further lower the barrier to entry.

StepFun AI is available on web, desktop, and mobile, providing individual users with an on-demand intelligent work companion. Whether enterprises are building intelligent customer service and automated processes, or individuals are handling document processing and content creation, StepFun offers complete capabilities from models to applications, making intelligence truly accessible to everyone.

Core capabilities

Step model series

From 100 billion to 1 trillion parameters, covering language, speech, and multimodality with industry-leading performance

Multimodal understanding

Natively parses images, PDFs, tables, and charts without additional vision processing modules

Agent workflows

Stable tool calling, deeply compatible with mainstream agent frameworks, and supports real-world business execution

Open API

Provides high-performance, easy-to-integrate Step API for quickly building various AI applications

Studio platform

Connects models, tools, and workflows to make AI application building easier

Open-source and customizable

Flagship models offer open weights, supporting local deployment, customization, and fine-tuning

Cross-platform apps

StepFun AI supports Web, Windows, macOS, iOS, and Android

Use cases

Intelligent customer service: Build multi-turn conversational chatbots to automatically answer product inquiries and after-sales questions

Code development: Assist programmers in generating code, writing tests, and fixing bugs

Document parsing: Extract key information from PDFs and tables for automated data entry

Agent automation: Orchestrate multi-step agents to automatically complete data collection and report generation

Content creation: Generate marketing copy, press releases, and social media posts

Voice interaction: Synthesize natural speech to create audio content or voice assistants

Education tutoring: Provide personalized Q&A, exercise explanations, and study planning

Financial analysis: Parse research report data to generate investment summaries and risk alerts