RadixArk, Inc.

RadixArk, Inc. based in the US, specializes in providing advanced infrastructure solutions for the development and deployment of artificial intelligence systems, enhancing efficiency and reliability across various applications. Founded in 2025, RadixArk operates out of the United States, focusing on optimizing AI system infrastructures. The company has successfully raised funding through 2 deals, with the latest funded by Accel.

RadixArk's current valuation stands at USD 400. 000 mn. RadixArk primarily offers advanced infrastructure solutions designed to optimize the development and deployment of artificial intelligence systems. Their core products include SGLang, a high-performance open engine for serving modern AI models, and Miles, an open-source framework for large-scale reinforcement learning post-training.

Both products are tailored to enhance the efficiency and reliability of AI applications, addressing critical pain points such as duplication of efforts across AI labs and inefficiencies in current infrastructure frameworks. These solutions cater to a diverse clientele, including individual developers, startups, enterprises, and research laboratories, with a commitment to making their products accessible globally in North America, Europe, and Asia. RadixArk generates revenue through a subscription-based model for its infrastructure services and tools. Clients subscribe to managed infrastructure offerings that provide scalable resources for AI training and inference.

Transactions are structured to allow customers, including businesses and research institutions, to utilize RadixArk's products directly or through partnerships. Pricing plans for flagship products, SGLang and Miles, are established based on resource usage, ensuring clients can choose options that fit their operational needs. This model not only drives revenue but also fosters a collaborative ecosystem where clients can innovate their AI capabilities. RadixArk plans to expand its product line, focusing on new offerings scheduled for release within the next year.

The company is targeting growth in specific markets across North America, Europe, and Asia by late 2025 to increase its global presence. Recent funding from angel investors will support these initiatives, enabling the development of enhanced infrastructure solutions to meet the evolving needs of their clientele. In May 2026, RadixArk, Inc. raised USD 100 million in seed funding co-led by returning investor Accel and new investor Spark Capital, with participation from other new investors Nventures, Salience Capital Partners Management, A&E Investment, HOF Capital, Walden Catalyst, AMD Ventures, LDV Management, W.

T. T. Investment, MediaTek Ventures, and Databricks Ventures. Individual and other unspecified investors also participated in the round.

The company will use the May 2026 funding to build software that lowers the computing power and cost of running artificial intelligence models.