Open WebUI vs Reply

Open WebUI (On a mission to build the best AI user interface.) and Reply (AI sales engagement for email, LinkedIn, SMS & calls. Open APIs, SDKs, and MCP server for developers building on Reply. Builders of Jason, the AI SDR.) both appear on the Smoower Developer Ecosystem Index.

Open WebUI (rank #189) holds a modest lead over Reply (rank #662) on the overall Smoower ecosystem score (50 vs 32). The gap of 18 points reflects composite signals across code, docs, community and reach.

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

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. Reply shows 0 stars across 3 public repos, 2 active in the last 90 days and 0 external contributors.

Open WebUI is the stronger read for anyone weighting community. Reply 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.