StepFun
To develop world-class multimodal foundation models and advance toward Artificial General Intelligence (AGI) through deep hardware and platform integration.
At a Glance
- Smartphone Manufacturers
- Automotive Manufacturers (OEMs)
- Software Developers
- Individual Consumers
- +1 more
AI Tools by StepFun
(1)
StepFun
Multimodal AI Platform and API
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Latest News
StepFun raises record RMB 5 billion in Series B+ funding.
Megvii co-founder Yin Qi joins StepFun as Chairman.
Geely Auto Group and StepFun showcase joint AI solutions at WAIC.
StepFun launches Step Reasoner mini high-performance model.
Products & Services
A trillion-parameter Mixture of Experts (MoE) large language model and its multimodal (vision) variant.
A trillion-parameter multimodal foundation model designed for advanced reasoning and complex tasks.
Cutting-edge multimodal reasoning model with 321B total parameters and 38B active parameters.
Reasoning model focused on logical deduction and problem-solving.
Market Position
One of China's 'Six Little Tigers' of AI; distinguishes itself by focusing on 'multimodal + terminal' strategies and early integration with major hardware ecosystems.
Leadership
Founders
Jiang Daxin (姜大昕)
Founder and CEO. Former Corporate Vice President at Microsoft, General Manager of WebXT S+D, and Chief Scientist at Microsoft Research Asia (MSRA). PhD from Nanyang Technological University.
Executive Team
Jiang Daxin
Founder and CEO
AI veteran with nearly 20 years at Microsoft; expert in deep learning and foundation models.
Yin Qi (印奇)
Chairman
Co-founder and former CEO of Megvii Technology; joined StepFun in 2026 to oversee strategic roadmap.
Board of Directors
Founding Story
StepFun was founded in April 2023 by Dr. Jiang Daxin, a former Microsoft Vice President, and a team of AI veterans. The company was established to build 'China's OpenAI' with a unique focus on multimodal trillion-parameter models that are designed to be integrated directly into hardware devices like smartphones and automobiles from the start.
Business Model
Revenue Model
B2B API usage (token-based), enterprise licensing for hardware integration (automotive and smartphones), and premium subscriptions for consumer apps.
Pricing Tiers
For Step-3 model (based on OpenRouter/Platform data).
For Step-3 model.
Available for consumer products like YueWen with usage limits.
Target Markets
- Smartphone Manufacturers
- Automotive Manufacturers (OEMs)
- Software Developers
- Individual Consumers
- Enterprise AI Adopters
- Smartphones and Terminal Agents
- Intelligent Automotive Systems (In-car assistants)
- Consumer Smart Assistants
- Enterprise API Solutions
- AI-powered Social and Character Platforms
- Geely Auto Group
- Oppo
- Honor
- ZTE