Cast AI vs Elastic
Side-by-side comparison of AI visibility scores, market position, and capabilities
Kubernetes cost optimization platform raised $108M Series C in Apr 2025 and achieved unicorn status at $1B+ in Jan 2026; AI-driven automation continuously rightsizes clusters for 2,100+ customers across AWS, Google Cloud, and Azure.
About
Cast AI is a Kubernetes cloud cost optimization platform founded to help engineering teams dramatically reduce their cloud infrastructure spending without manual intervention. The company was built on the observation that most Kubernetes clusters are significantly over-provisioned — teams allocate far more compute than workloads actually consume because manual right-sizing is time-consuming and risky. Cast AI's platform uses AI-driven automation to continuously analyze workload resource consumption, identify over-provisioned nodes, and automatically rightsize and rebalance clusters in real time across AWS, Google Cloud, and Azure.\n\nCast AI's core product sits between the cloud provider and the Kubernetes cluster, acting as an autonomous cost optimization layer that adjusts compute allocation dynamically based on actual usage patterns. The platform handles spot instance management, node autoscaling, pod bin-packing, and workload scheduling optimizations — capabilities that typically require dedicated platform engineering teams to implement manually. Cast AI provides a single-pane dashboard showing real-time savings, cost trends, and optimization recommendations across multi-cloud Kubernetes environments.\n\nCast AI raised a $108M Series C in April 2025 and achieved unicorn status at a $1B+ valuation in January 2026, reflecting strong product-market fit in the cloud cost management space. The company serves 2,100+ customers and has documented billions of dollars in cumulative cloud savings across its user base. Cast AI competes with Spot by NetApp, StormForge, and cloud-native autoscaling tools, differentiating through the depth of its autonomous optimization — going beyond simple recommendations to fully automated, continuous rightsizing.
NYSE-listed (ESTC) Elasticsearch creator at $1.42B revenue with search, observability, and SIEM; 21,000+ customers competing with Splunk and Datadog while powering AI RAG vector search infrastructure.
About
Elastic N.V. is an Amsterdam-based enterprise search and observability company — the creator and primary commercial distributor of Elasticsearch, the world's most widely used open-source search engine — providing the Elastic Stack (Elasticsearch distributed search, Kibana visualization, Logstash data pipelines, Beats lightweight data shippers) for enterprise search, application observability, SIEM security analytics, and vector search for AI applications. Listed on NYSE (NYSE: ESTC), Elastic was founded in 2012 by Shay Banon and generated $1.42 billion in revenue in fiscal year 2025, serving 21,000+ customers including Microsoft, Verizon, and Spotify.
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