Grafana Labs leverages and contributes to the open-source project OpenCost to enhance real-time cost monitoring in Kubernetes, addressing the challenge of insufficient cost visibility in the rapidly growing adoption of Kubernetes. Developed by Kubecost and released as a CNCF sandbox project in 2022, OpenCost offers real-time insights into Kubernetes spend and resource allocation, breaking down costs across nodes, persistent volumes, and load balancers. Grafana Labs has utilized OpenCost to improve cost observability, especially in obtaining accurate vCPU and memory cost data and monitoring costs across multi-cluster architectures. Their contributions to OpenCost focus on observability improvements, ease of multi-cluster deployment, and performance enhancements. By implementing industry-standard operational metrics and utilizing prom-label-proxy for efficient data querying, Grafana Labs aims to optimize OpenCost's performance and resource utilization. Their efforts include releasing Grafana dashboards and alerting rules and planning for broader community engagement through open-source contributions and collaborations within the OpenCost community.