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langfuseWhat its open source is doing now

🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23

Website
langfuse.com
Repository
langfuse/langfuse
First commit
Stars today
33,973
Forks
3,667

Measured by us

GitHub stars, 22 Apr 2026 – 31 Aug 2026

93 observations · every few days

26,60028,69030,79032,890 33,973 MayJunJulAug
Stars, observed directly by us

Where it is now

Holding close to its own average

Over the 30 days to 31 Aug 2026 the repository added 1,703 stars. Across the 131 days we have recorded it averages 64.6 a day, so the last month is running at 0.9× that.

33,973
stars on 31 Aug 2026
56.8/day
last 30 days
62.3/day
last 98 days

What this does not show

  • Stars measure attention, not revenue, adoption or retention.
  • The series starts on 22 Apr 2026, when we began observing this repository. Anything earlier survives only as a monthly reconstruction that does not join up with these readings, so it is not plotted.

We have been recording langfuse/langfuse since 22 Apr 2026.

Finding companies at that stage is the product. Contributor pedigree, enterprise-demand signals and our ranking sit behind the login.

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