Langfuse is by far the best of the langs (-chain, -graph, -smith, -flow) in terms of UI/DX/integration/docs/quality.

Interesting development, announced at the same time as ClickHouse raising $400M Series D at $15B valuation.

Doesn't seem like much is changing at Langfuse - still open source, was already hosted on ClickHouse cloud, lot of collaboration existed between both teams.