ggml vs Open WebUI

ggml (AI inference at the edge) and Open WebUI (On a mission to build the best AI user interface.) both appear on the Smoower Developer Ecosystem Index.

ggml (rank #103) holds a narrow lead over Open WebUI (rank #190) on the overall Smoower ecosystem score (55 vs 50). The gap of 5 points reflects composite signals across code, docs, community and reach.

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

ggml carries 191,415 GitHub stars across 22 public repos, with 15 repositories active in the last 90 days and 308 external contributors on record. Open WebUI shows 159,650 stars across 25 public repos, 12 active in the last 90 days and 198 external contributors.

ggml is the stronger read for anyone weighting reach. Open WebUI looks better where code quality 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.