Ollama vs vLLM

Ollama and vLLM both appear on the Smoower Developer Ecosystem Index.

vLLM (rank #22) holds a modest lead over Ollama (rank #124) on the overall Smoower ecosystem score (67 vs 57). The gap of 10 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 Ollama. On education (docs, guides and learning material for developers), Ollama is ahead of vLLM. On community (issue response, PR reviews and discussion health), vLLM is clearly ahead of Ollama. On reach (how visible the ecosystem is beyond its own repos), Ollama is slightly ahead of vLLM. On momentum (release cadence and how fast the ecosystem moves), Ollama is clearly ahead of vLLM.

Ollama carries 196,954 GitHub stars across 4 public repos, with 4 repositories active in the last 90 days and 258 external contributors on record. vLLM shows 129,682 stars across 50 public repos, 41 active in the last 90 days and 1,008 external contributors.

Ollama is the stronger read for anyone weighting momentum. vLLM looks better where community 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.