Reflex Raises $14M Series A to Bring AI App Development to Enterprises, Led by Standard Capital

Dalton Caldwell sits down with Reflex co-founders Nikhil Rao and Alek Petuskey to discuss their $14 million Series A led by Standard Capital, with participation from Databricks Ventures, Y Combinator, Lux Capital, and Abstract Ventures. Reflex is an AI-native platform for building and deploying production apps in Python. Its open-source framework lets developers build full-stack web applications in pure Python, while its AI app builder and agent toolkit help teams move faster using the tools they already know. What started as an open-source project in Y Combinator’s Winter 2023 batch grew into a framework used by more than 30% of Fortune 500 companies. Now, Reflex is building the platform around it: AI development tools, deployment, security, and governance for enterprise applications. In this conversation, Nikhil and Alek explain how open-source adoption became their enterprise sales pipeline, why Python teams want AI tools that work with their existing code, and what it takes to move from a prototype to a mission-critical app. They also share how the World Bank used Reflex to build an AI application serving more than 200 lawyers in weeks. We discuss: • Turning an open-source project into an enterprise software company • The risks of enterprise vibe coding—and why understanding the code still matters • Helping small Python teams ship production apps without a separate frontend team • Recruiting engineers from the open-source community • Building applications that AI agents can use directly • Why training data, documentation, and token efficiency could shape which frameworks agents choose • Why Reflex chose Standard Capital for its Series A Learn more about Reflex: https://reflex.dev Explore the open-source framework: https://github.com/reflex-dev/reflex Connect with the founders: Nikhil Rao: https://www.linkedin.com/in/nrao95/ Alek Petuskey: https://www.linkedin.com/in/aleksanderpetuskey/ About Standard Capital: Standard Capital is the AI-native Series A firm. We lead Series A rounds for the best founders through a fast application and interview process, with transparent terms, no board seats, and ongoing support from experienced partners and founder peers. Apply: https://www.standardcap.com LinkedIn: https://www.linkedin.com/company/standard-capital-ventures/ X: https://x.com/Standard_Cap