Langfuse vs Weaviate

Langfuse (Open source AI engineering platform. Debug, analyze and iterate together.) and Weaviate (Weaviate creates database software like the Weaviate vector search engine) both appear on the Smoower Developer Ecosystem Index.

Langfuse (rank #63) holds a narrow lead over Weaviate (rank #152) on the overall Smoower ecosystem score (59 vs 52). The gap of 7 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Langfuse is slightly ahead of Weaviate. On education (docs, guides and learning material for developers), Weaviate is clearly ahead of Langfuse. On community (issue response, PR reviews and discussion health), Langfuse is slightly ahead of Weaviate. On reach (how visible the ecosystem is beyond its own repos), Langfuse is clearly ahead of Weaviate. On momentum (release cadence and how fast the ecosystem moves), Weaviate is ahead of Langfuse.

Langfuse carries 32,648 GitHub stars across 25 public repos, with 22 repositories active in the last 90 days and 147 external contributors on record. Weaviate shows 30,251 stars across 140 public repos, 32 active in the last 90 days and 51 external contributors.

Langfuse is the stronger read for anyone weighting reach. Weaviate looks better where education is the deciding factor. The table below breaks the scores down pillar by pillar; the linked profiles cover the underlying repos, docs and community signals in full.