vLLM vs Zilliz

vLLM and Zilliz (Vector Database for Enterprise-grade AI and LLM applications) both appear on the Smoower Developer Ecosystem Index.

vLLM (rank #95) holds a narrow lead over Zilliz (rank #222) on the overall Smoower ecosystem score (58 vs 50). The gap of 8 points reflects composite signals across code, docs, community and reach.

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

vLLM carries 131,658 GitHub stars across 52 public repos, with 43 repositories active in the last 90 days and 1,044 external contributors on record. Zilliz shows 39,935 stars across 75 public repos, 34 active in the last 90 days and 99 external contributors. The star gap on its own does not decide the comparison, but vLLM's footprint is roughly 3.3x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

vLLM is the stronger read for anyone weighting community. Zilliz makes more sense for teams already using its adjacent tools. The table below breaks the scores down pillar by pillar; the linked profiles cover the underlying repos, docs and community signals in full.