Explore how Amazon OpenSearch Service is transforming from traditional search and analytics into a powerful platform for next-generation observability in this comprehensive conference talk from AWS re:Invent 2025. Learn how organizations can significantly reduce operational costs by modernizing their observability infrastructure through the strategic integration of OpenTelemetry, OpenSearch, Amazon S3, and CloudWatch. Discover practical approaches to building sophisticated observability solutions that leverage OpenSearch's real-time analytics capabilities enhanced with AI-powered insights through Amazon Q. Gain insights into the evolution of observability beyond conventional monitoring approaches and understand how to implement cost-effective, modern observability stacks that provide deeper operational intelligence and improved system visibility.