Langfuse
🪢 Open source agent evals & observability: Trace, evaluate, and improve LLM applications with one open platform. open source
Where it ranks
- LLM tracing and observability: Pick (81.3/100)
Pricing
Open source (self-host). Cloud: Hobby free; Core $29/mo; Pro $199/mo.
Source: https://langfuse.com/pricing, checked 2026-10-19
Public signals
| GitHub stars | 36.0ksource |
|---|---|
| Forks | 4.0k |
| Last push | Oct 19, 2026 |
| 7-day star change | unknown (needs 7 days of snapshots) |
| Latest stable release | v4.64.0 Oct 19, 2026 |
| Hacker News, last 30 days | 0 stories, 0 points query |
Matched by linked URL “langfuse.com”. Title matches can include unrelated stories.
Recent releases
- v4.64.0 Oct 19, 2026
What's Changed Features feat(trace): Move messages tab and reuse session timeline by @bezbac in #18953 feat(api-keys): enable project API key permissions by default by @marksalpeter in #18950 feat: rename Langfuse Assistant to Halo by @Lotte-Verheyden in #18898 feat(api-keys): sh - v4.63.0 Oct 16, 2026
Features feat(web): link personal feature previews from organization settings by @nimarb in #18887 feat(traces): integrate PostHog analytics for IO parser comparison tracking by @marliessophie in #18896 feat(skills): improve browsing and editing UX by @tobi12345 in #18940 feat(ai - v4.62.0 Oct 16, 2026
What's Changed ci: run ai-gateway e2e tests on ai-gateway crate changes by @wochinge in #18915 ci(deps): let the security maintainer remediate Rust Dependabot alerts by @wochinge in #18885 fix(web): tracing page header and search row spacing by @nmtrang29 in #18352 feat(ai-gatewa