RadixArk
Open-source LLM inference engine and RL training framework, plus a managed platform, for AI labs and enterprise teams
Highlights
- New on EvolcAdded 2026-11-14
About RadixArk
RadixArk builds open-source AI infrastructure. Its projects are SGLang, an inference engine for serving open models, and Miles, an open framework for large-scale reinforcement learning. Its RadixArk Platform brings both into a managed service for production inference and RL training.
The company serves AI labs, agent builders and enterprise teams, as well as data centers and neoclouds that run inference services on their hardware. Customers can run workloads on their own GPUs or on RadixArk capacity. The site names Reflection AI, Palo Alto Networks, Cerebras Systems and Cognition among organisations it has worked with.
RadixArk announced a $100M seed round in May 2026. Its listed offices are in Palo Alto, San Francisco and Singapore. Open positions, 19 at the time of capture, cover member of technical staff roles in inference, training and cluster infrastructure, plus research, product, and go-to-market.
Product: SGLang inference engine, Miles RL training framework, and RadixArk Platform, a managed service for production inference and RL training.
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Website technologies
Tools and platforms detected on this company’s website, grouped by purpose. Dates record when Evolc observed them.
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