Open WebUI vs Vercel Labs

Open WebUI (On a mission to build the best AI user interface.) and Vercel Labs (Develop. Preview. Ship. Creators of Next.js.) both appear on the Smoower Developer Ecosystem Index.

Vercel Labs (rank #9) holds a modest lead over Open WebUI (rank #97) on the overall Smoower ecosystem score (71 vs 58). The gap of 13 points reflects composite signals across code, docs, community and reach.

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

Open WebUI carries 164,397 GitHub stars across 25 public repos, with 10 repositories active in the last 90 days and 180 external contributors on record. Vercel Labs shows 188,839 stars across 348 public repos, 76 active in the last 90 days and 470 external contributors.

Open WebUI is the stronger read for anyone weighting community. Vercel Labs looks better where momentum 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.