StepFun vs OpenAI

By valuation, OpenAI is the larger company at $852B versus $2B — a 426x difference. Size can also be measured by team: StepFun employs 100-500 people while OpenAI has 4,000 employees.

OpenAI has raised more in total funding at $127B, compared to StepFun's $570M — a gap of $126.4B. Combined, the two companies have completed 6 known funding rounds.

OpenAI leads with an Awaira Score of 98/100, while StepFun sits at 58/100. That 40-point gap reflects real differences in funding, scale, and traction — it's not a vanity metric.

StepFun was founded by Jiang Daxin in 2023. OpenAI was founded by Sam Altman in 2015. Visit each company's profile on Awaira for a full founder biography.

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. OpenAI: OpenAI is an artificial intelligence research laboratory founded in 2015 and headquartered in San Francisco. The company develops and deploys large language models and foundation models that power conversational AI applications. Its flagship product, ChatGPT, launched in November 2022 and rapidly became one of the fastest-adopted applications in technology history, reaching 100 million users within two months. OpenAI also offers GPT-4, a more advanced language model, and provides API access to developers through its platform. The company operates in the foundation models category, competing directly with Anthropic, Google DeepMind, and Meta in developing transformer-based large language models. OpenAI's approach emphasizes training increasingly capable models using large datasets and computational resources. Notable applications include content generation, coding assistance, customer service automation, and research support across enterprises and consumer markets. OpenAI has secured substantial funding from diverse sources including Microsoft, which invested $13 billion, making it one of the most heavily funded AI companies. The company's valuation reached $500 billion as of recent funding rounds, reflecting investor confidence in the commercial potential of large language models. The organization transitioned from a non-profit structure to a capped-profit model to facilitate venture capital investment. Growth has accelerated significantly following ChatGPT's release, expanding its user base and enterprise adoption substantially. OpenAI created one of the first large language models to achieve mainstream consumer adoption through ChatGPT, establishing a dominant position in accessible AI applications.

OpenAI got there first, launching in 2015 — that's 8 years of extra runway. StepFun didn't arrive until 2023. In AI, that kind of head start means more training data, deeper customer relationships, and a bigger talent moat.

StepFun has about 100-500 employees; OpenAI has about 4,000. A bigger team usually means more revenue or heavier VC backing, but in AI, small teams can build at massive scale.

Yes — they're direct rivals. Both StepFun and OpenAI compete in Foundation Models, targeting many of the same buyers. If you're evaluating one, you should be looking at the other.