Langfuse joins ClickHouse!
We started Langfuse in 2023 to solve a problem we kept hitting ourselves: building LLM apps is easy to demo, hard to run in production. Thousands of teams now use Langfuse to trace, evaluate, and iterate on their AI applications.
As we scaled, we moved our data layer to ClickHouse, and that technical decision turned into a real partnership. We collaborated on features, shared customers, ran community meetups together. ClickHouse uses Langfuse internally; we're a large ClickHouse Cloud customer.
Building Langfuse with the team is so much fun. If it was not for long conversations with Aaron, Yury, Alexey, Tanya, Ryadh, and Pete, realizing how much we can accelerate together, and the OSS and engineering focused culture that is super aligned, I would have never considered this path. Extremely excited to build together!
Why we decided to join
- Langfuse is a data-intensive product. Working closely with ClickHouse engineering helps us push performance and reliability faster than we could alone.
- ClickHouse has every incentive to keep Langfuse fast and dependable at scale; we share customers, OSS deployments, and now a roadmap.
- The culture is a match: open-source identity, developer-first instincts, performance as a product feature.
What stays the same:
- Ambition to build the best product possible to accelerate AI Agent deployment
- Open source and self-hostable (no licensing changes planned)
- Langfuse Cloud keeps running as-is
- Team joins to keep building Langfuse and we will expand the team a lot
Grateful for the community and team that got us here. This lets us put more resources behind building something we all care deeply about!
Congrats all, Marlies, Hassieb, Jannik, Steffen, Felix, Nimar, Akio, Valeriy, Lotte, Leonard, Max and Clemens, the job is not finished, but today is a great day to celebrate!
-> Blog post with full story in comments