langfuse.com

Building high-quality AI systems is hard. At Langfuse we see the best AI teams converging on a process to get complex AI systems to production. We call it the AI Engineering Loop. Check out the first piece of our series and find out more in our academy

Stop shipping prompts on vibes. With Langfuse you can test AI features on real datasets, run prompt versions side-by-side, and auto-score them with evals. This way you catch regressions before your users do.

meet us at @WeAreDevs in Berlin, 08-10 July booth 2_41. come talk agents, evals, and continuously improving them.

AI now in the langfuse filter search bar. describe filters in plain language, "enterprise customers stuck in the membership-support queue", and it drafts editable pills mapped to your project's actual columns and metadata keys. langfuse.com/changelog/2026…

langfuse datasets are now multi-modal. attach images, audio, video, and documents to dataset items via the UI or python/js sdk, then run multi-modal experiments. media auto-resolves to bytes, base64, or data uris for any provider. langfuse.com/changelog/2026…

This AI agent confidently gave a customer the wrong answer. It took 30 seconds in Langfuse to find why: one bad line in a routing table, buried three steps upstream from where the mistake actually showed up. Video breakdown below 👇

@sum3rman joined @peignonmel from @ClickHouseDB to talk full-text search at scale. how the now-GA inverted index works, when to reach for it over skipping indexes, and how we run it in production at langfuse. recording: youtube.com/watch?v=MrTnAO…

You can visit our Docs on the integration here: langfuse.com/integrations/o…. And our ClawHub Plugin is here: clawhub.ai/codecls/plugin… 1. CLI: openclaw plugins install clawhub:openclaw-x-langfuse-plugin 2. Edit the openclaw.json file to add the keys and region 3. CLI: openclaw gateway restart Have fun🙌!

Your OpenClaw agent is doing a lot behind the scenes, model calls, tool runs, costs. Now you can actually see all of it. Trace every step with the official Langfuse plugin, just a couple of commands to set up 👇

Langfuse workshop ongoing at @aiDotEngineer on how to auto-optimize AI Agents If you can’t join live, check out what @annabellschfr and @lotte_verheyden built at langfuse.com/workshop

Just arrived to SF for @aiDotEngineer and ran into our posters at Powell street🎉🪢 Gave the pic to AI to make the agents look as happy as I was!

code evaluators means running untrusted user code across thousands of tenants in our multi-tenant cloud. @wochinge wrote about the full design: (V8 isolates, pyodide), gVisor and firecracker, and kubernetes jobs. langfuse.com/blog/2026-06-2…

My work schedule for today. Empty calendar, full tunnel mode. If you also want suspiciously calm but shipping-intense days like this, join @langfuse

@pmontp19 Unfortunately not fully. You can find more context here + add your +1: github.com/orgs/langfuse/…

@langfuse does prompts support mustache's conditional syntax?

web callouts are live. trigger an HTTP call to your own backend from any trace, observation, or session. re-run an agent, attach a trace to a support case, or kick off your own workflow. langfuse.com/docs/observabi…

Langfuse Assistant is now in public beta, free for everyone on Langfuse Cloud. Chat with your data in plain language: ask why latency spiked, which generations failed, or where token spend is going. Powered by the Langfuse MCP. langfuse.com/changelog/2026…

Today we shipped the Filter Search Bar at @langfuse. It's my first feature since joining, so I wanted to share how we've built it. 🧵

People keep stopping by our booth at #SuperAI just to take photos. The design team cooked. And yes, @langfuse users have excellent taste.

Langfuse x @NousResearch Hermes Agent integration is now available. Hermes ships with a bundled Langfuse plugin, every conversation turn, LLM call, and tool use is traced automatically. langfuse.com/integrations/o…

you can technically automate the entire AI engineering loop now while it’s tempting, here’s what we think you should keep in your own hands to set your agent apart

Now live: Langfuse x @openai Codex integration. Trace every prompt, tool call, shell command, and token across your Codex sessions. Also available for Claude Code. langfuse.com/integrations/o…