Mistral AI vs Open WebUI

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

Mistral AI (rank #55) holds a modest lead over Open WebUI (rank #189) on the overall Smoower ecosystem score (60 vs 50). 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), Open WebUI is slightly ahead of Mistral AI. On education (docs, guides and learning material for developers), Open WebUI is slightly ahead of Mistral AI. On community (issue response, PR reviews and discussion health), Mistral AI is slightly ahead of Open WebUI. On reach (how visible the ecosystem is beyond its own repos), Mistral AI is clearly ahead of Open WebUI. On momentum (release cadence and how fast the ecosystem moves), Open WebUI is slightly ahead of Mistral AI.

Mistral AI carries 24,141 GitHub stars across 26 public repos, with 14 repositories active in the last 90 days and 109 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. The star gap on its own does not decide the comparison, but Open WebUI's footprint is roughly 6.6x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Mistral AI 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.