The useful way to judge Softgen against VibeCode is on one concrete job: building a small business app with user logins, permissioned data, and enough durability to survive after the first prompt session. That job matters because both tools can generate screens quickly, but they diverge once the app needs auth, data isolation, and repeatable fixes instead of just visible UI.
This is also the job that exposes the failure modes that actually matter. A rough landing page can be patched later, but a brittle auth flow, unclear data boundaries, or expensive fix loop turns a cheap prototype into a maintenance problem. If a tool cannot make ownership, permissions, and iteration legible here, it is not really solving the hard part of the build.