vmestimator is a new open-source tool that estimates metric cardinality in real time. It can alert to high-cardinality spikes before they slow queries and increase resource usage. Works with any Prometheus-compatible setups, Grafana, and vmalert
See practical examples on monitoring LLM applications and Agents with OpenLIT and VictoriaMetrics observability stack. See real examples of the deployment manifests, alerting rules and Grafana dashboard.
Learn how Airbnb rebuilt its observability pipeline with OpenTelemetry and vmagent to handle over 100 million samples per second, reduce cost by 10x, and simplify high-scale metrics aggregation.
Discover multi-tier observability architecture with VictoriaMetrics OSS. Learn how to isolate default, high-cardinality, and business-critical workloads into separate tiers with optimized retention periods, ingestion resolution, cardinality limits, alerting policies, and cost controls.
Reduce observability costs with hybrid strategies: prioritize revenue-driving signals in SaaS, self-host high-volume telemetry. Cut bills 3-12x without losing visibility.
OpenAI applies observability to autonomous AI agents using the VictoriaMetrics Stack and OpenTelemetry. Learn to build your own local setup with metrics, logs, and traces that help LLMs test, benchmark, and iterate autonomously.
Learn how to add observability to Vibe Coding Tools using OpenTelemetry and the VictoriaMetrics Stack. This guide explains how to configure popular vibe coding tools to export their metrics telemetry and get insights about your vibe coding sessions.
In 2025, VictoriaMetrics deepened its commitment to open source, community, and developer experience across the global cloud-native ecosystem. This year-in-review reflects on key observability themes, global engagement, OpenTelemetry contributions, and the people and conversations that shaped the year.
Learn how to add observability to AI agents using OpenTelemetry and the VictoriaMetrics Stack. This guide explains how to instrument popular LLM frameworks and visualize metrics, logs, and traces in Grafana.
The OpenTelemetry Astronomy Shop demo has long served as a reference environment for exploring observability in distributed systems, but until now it shipped with only a Prometheus datasource. VictoriaMetrics forked the demo and extended it with VictoriaMetrics, VictoriaLogs, and VictoriaTraces, providing insights into VictoriaMetrics’ observability stack where metrics, logs, and traces flow into a unified backend.