ClickHouse acquires Langfuse

Just did a funding round. In a sign of the times clickhouse used to be an interesting DB product, but is now a "database software that companies can use as they develop AI agents "

<i>Database technology startup ClickHouse Inc. has raised $400 million in a new funding round that values the company at $15 billion — more than double its valuation less than a year ago. </i>

https://www.bloomberg.com/news/articles/2026-01-16/clickhous...

> Our goal continues to be building the best LLM engineering platform

Interesting headline for a checks notes time series database company.

Ah, the painful migration to Clickhouse from v2 to v3 makes sense now https://langfuse.com/self-hosting/upgrade/upgrade-guides/upg...

Congratulations to everyone involved, quite remarkable considering Langfuse was only founded as part of YC 23.

Langfuse has been my favorite LLM observability solution so far. Hopefully this acquisition makes it better, not worse.

I predict it will be Pydantic next to get picked up by someone for logfire and agent framework.... fine as long as all these open source projects stay open source then good for them

maybe clickhouse can finally make sense of the langfuse documentation

(congrats team! such a joy to see you succeed)

every single day there is an acquisition on here. what's going on in the macro?

the "Prompt Management" part of these products always seemed odd. Does anyone use it? Why?

how does it benefit for clickhouse?

Does this mean Langfuse will now have better ClickHouse integration?

Clickhouse needs observability models to be more useful to agent run infra