Open WebUI vs Replicate

Open WebUI (On a mission to build the best AI user interface.) and Replicate (Run AI with an API) both appear on the Smoower Developer Ecosystem Index.

Open WebUI and Replicate sit at essentially the same overall ecosystem score (50), which is unusual and worth reading through the pillars below.

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

Open WebUI carries 159,650 GitHub stars across 25 public repos, with 12 repositories active in the last 90 days and 198 external contributors on record. Replicate shows 25,062 stars across 169 public repos, 10 active in the last 90 days and 12 external contributors. The star gap on its own does not decide the comparison, but Open WebUI's footprint is roughly 6.4x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Open WebUI is the stronger read for anyone weighting education. Replicate looks better where reach 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.