ModelBest vs StepFun

Neither company has publicly disclosed a valuation, making a definitive size comparison difficult. ModelBest employs 1-50 people, while StepFun has 100-500 employees.

StepFun has raised $200M in disclosed funding across 0 known rounds. ModelBest's funding history is not publicly available.

StepFun holds the higher Awaira Score at 58/100, compared to ModelBest's 30/100. The Awaira Score is a composite metric factoring in valuation, funding, stage, team size, and market presence — a 28-point gap that reflects meaningful differences in scale or traction.

ModelBest was founded by Han Xianpeng in 2020. StepFun was founded by Jiang Daxin in 2023. Visit each company's profile on Awaira for a full founder biography.

ModelBest: ModelBest is an early-stage Chinese foundation model company focused on developing efficient large language models for enterprise deployment, pursuing model architecture research aimed at improving inference efficiency and reducing the compute requirements for Chinese-language LLM applications. The Beijing company targets enterprise clients seeking to deploy private LLM capabilities without the infrastructure costs associated with the largest-scale foundation models.\n\nThe company is seed stage with backing from Chinese technology investors. ModelBest participates in the Chinese foundation model ecosystem by focusing on efficient model architectures that enable deployment in resource-constrained enterprise environments, a differentiated approach compared to the scale-first strategy pursued by better-funded Chinese foundation model competitors.\n\nModelBest operates in a challenging competitive environment where Chinese foundation model startups are competing against the AI divisions of Alibaba, Baidu, and ByteDance and against each other for enterprise customers and funding. The efficient inference positioning aligns with a genuine enterprise need for LLM capabilities that can run on private infrastructure without hyperscale GPU clusters, a requirement particularly relevant for industries with strict data localisation requirements such as banking and government. The company early stage reflects the rapid proliferation of Chinese AI startups following the generative AI wave of 2023. StepFun: StepFun develops multimodal foundation models for Chinese and English language applications, producing the Step series of large language and vision-language models that target enterprise deployment through API and private cloud licensing. The Beijing company was founded by Jiang Daxin, a former senior executive at Baidu, bringing search and large-scale AI infrastructure experience to foundation model development in the rapidly competitive Chinese LLM startup market.\n\nThe company raised approximately $200 million in early funding from Chinese venture capital firms including Hillhouse Capital and other technology-focused investors backing the wave of Chinese foundation model startups that emerged following the launch of ChatGPT. StepFun models are positioned for enterprise customers in finance, legal, and customer service sectors requiring high-quality Chinese language reasoning and instruction following capabilities.\n\nStepFun competes in a crowded Chinese foundation model market alongside Moonshot AI, MiniMax, Zhipu AI, and Baichuan, as well as the AI divisions of Alibaba, Baidu, and ByteDance that have substantially greater compute resources and distribution. The Chinese foundation model market has seen aggressive fundraising and model release activity as the government signals support for domestic AI capability development. Differentiation among Chinese LLM startups is increasingly difficult as model benchmark performance converges, shifting competition toward vertical domain adaptation, inference cost, and enterprise integration services.

ModelBest was founded first in 2020, giving it 3 years of additional market experience. StepFun was founded later in 2023. In AI, even a year or two of head start can translate into significantly more training data, customer relationships, and institutional knowledge.

ModelBest has approximately 1-50 employees, while StepFun has approximately 100-500. A larger team often signals higher revenue or venture backing, but in AI, smaller teams are increasingly capable of building at scale.

Yes, ModelBest and StepFun are direct competitors — both operate in the Foundation Models space and likely target overlapping customer segments. This comparison is especially relevant for buyers evaluating both platforms.