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OpenCSG develops open-source tools and cloud services for large language model development and management.
Founded in 2023, Beijing-based OpenCSG provides services and platforms for AI model development. Its StarNet system uses cloud-native K8S technology to manage computing resources, train and optimize large language models, and support low-code workflows. Founder Ran Chen previously founded and led Jihu GitLab and worked at IBM, HP, and Mesosphere. In August 2026, OpenCSG raised Pre-Series A funding from Shanghai Jing'an Capital, Yimei Capital, Shanghai Xuhui Capital Investment, and Jiangsu Huanghai Financial Holding Group.
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