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Langfuse Open Sources All Product Features: Building the Open LLM Engineering Platform

2025-06-04

Langfuse is open-sourcing all its product features, including managed vector databases, evaluation tools, and the Playground, to accelerate community application iteration and gather feedback. This move stems from Langfuse's vision to be the leading open-source LLM engineering platform. By opening core features, they aim to foster trust, collaboration, accelerate adoption, and iterate faster. Langfuse started as an open-source project and remains committed to this principle. Only Enterprise security and platform team features (e.g., SCIM, audit logs, data retention policies) remain commercially licensed; the rest are MIT licensed. With over 8,000 monthly active self-hosted instances, this move solidifies Langfuse as the top choice for a powerful, truly open-source platform in LLMOps.

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Langfuse Launches Customizable Dashboards: Unleashing the Power of LLM Usage Data

2025-05-21

On Day 3 of Langfuse's launch, they introduced customizable dashboards: a powerful way to visualize LLM usage directly within the Langfuse UI. Whether you want to track latency trends, monitor user feedback, or correlate cost with performance, the new dashboards let you build the charts you need, right where you need them. For those preferring their own analytics stack, the same querying capabilities are available via their API. This post details the journey from product ideation to technical implementation, testing, and rollout, sharing lessons learned in building flexible, real-time insights into your LLM pipelines. By abstracting the data model, building a flexible and performant query engine and dashboard builder, Langfuse successfully delivered customizable dashboards, iterating through beta testing and user feedback to add more chart components, resizable widgets, improved tooling, and even Langfuse-managed dashboards offering valuable pre-built themes.