Open source hasn't faded — it has matured into the foundational control plane for AI and cloud-native infrastructure. CNCF now hosts 230+ projects with 300,000+ contributors, 82% of container users run Kubernetes in production, and GitHub recorded 1.12 billion contributions in 2025. Corporate investment dominates: Red Hat, Microsoft, and Google lead CNCF contributions not out of altruism but as product strategy — shaping defaults, normalizing interfaces, and gaining leverage over the ecosystem. Key projects like OpenTelemetry (39% commit growth), Cilium (90% more contributing companies), and Kubeflow are seeing surging investment because they sit at the intersection of networking, observability, and AI workload management. Nvidia's open source contributions to Kubernetes scheduling and Kubeflow signal where AI infrastructure is heading. With 66% of organizations running generative AI on Kubernetes, open source has become less romantic and more essential — the substrate on which AI production systems are built.
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