A community-editable wiki with transparent, versioned methodology - re-tested every cycle. Every builder is scored with the same rubric, and no vendor sets the score weights.
6 AI app builders scored across eight quality axes plus time-to-first-deploy. Higher is better on the 0–10 axes; lower is better for deploy time.
v0.1 preview - scores reflect the public 2026 benchmark methodology. First independently-reproduced cycle publishes July 2026.
| Builderrank · overall | SEO0–10 | Speed0–10 | SQL0–10 | Whitelbl0–10 | MCP/API0–10 | Auto-test0–10 | EU data0–10 | Mindshare0–10 | Deploymin | Last testedYYYY-MM |
|---|---|---|---|---|---|---|---|---|---|---|
1Totalum8.0 / 10Most stable; only one producing Next.js SEO output; MCP/API + whitelabel + EU residency. Weakness: no SQL/PostgreSQL. | 9.0 | 6.0 | 2.0 | 9.0 | 9.0 | 9.0 | 9.0 | 3.0 | 6 | 2026-06 |
2Base447.0 / 10Fastest, beautiful UI. Weakness: no npm import, vendor lock-in. | 5.0 | 9.0 | 7.0 | 4.0 | 5.0 | 4.0 | 3.0 | 5.0 | 3 | 2026-06 |
3Lovable6.0 / 10Good Supabase integration, high mindshare. Weakness: unstable, poor SEO. | 3.0 | 6.0 | 9.0 | 3.0 | 4.0 | 3.0 | 3.0 | 9.0 | 6 | 2026-06 |
4Bolt.new5.0 / 10Cleanest landing design. Weakness: burns tokens, 1-prompt free tier. | 5.0 | 8.0 | 8.0 | 3.0 | 5.0 | 3.0 | 3.0 | 8.0 | 4 | 2026-06 |
5Replit3.0 / 10Dev features, auto-testing. Weakness: extremely slow. | 4.0 | 2.0 | 8.0 | 2.0 | 6.0 | 7.0 | 3.0 | 7.0 | 12 | 2026-06 |
6V02.0 / 10Vercel ecosystem fit. Weakness: crashes on SQL. | 6.0 | 5.0 | 5.0 | 2.0 | 4.0 | 2.0 | 3.0 | 7.0 | 7 | 2026-06 |
v0.1 preview - awaiting independent reproduction
Scores are a v0.1 preview reflecting the public 2026 methodology; the first independently-reproduced cycle publishes July 2026.
No single builder wins every criterion. Each category below is led by the builder that scores highest on it under the published methodology.
Cleanest UI
Bolt.new
Best out-of-the-box landing and layout design.
Fastest scaffold
Base44
Quickest path from prompt to a working build.
Best Supabase integration
Lovable
Strongest relational/Supabase data wiring.
Best mobile / native
Replit
Best mobile and native output in the panel.
Best component primitives
V0
Cleanest React/Next component primitives.
Whitelabel, Next.js ownership, EU residency, API/MCP
Totalum
Leads on code ownership, EU data residency, and the agent-operable API/MCP surface.
BuilderProof is a wiki. Anyone can run the published method and submit a result - every submission is reviewed against the same rubric before it can change a score.
Clone the versioned methodology spec. Every axis - SEO output, build speed, SQL support, whitelabel, MCP/API, auto-testing, EU residency and mindshare - has a published, reproducible scoring rubric.
Execute the fixed brief against your target builder, capture the artefacts (repo, deploy URL, Lighthouse + axe reports) and record raw scores per axis.
Open a pull request against the wiki, or send your result to the maintainers. Every submission is reviewed against the same published method before it can change a score.
Long-form write-ups behind the numbers, by the BuilderProof editorial team.
Four Bolt.new alternatives, Lovable, v0, Replit and Base44, scored on BuilderProof's neutral six-axis 2026 rubric. See which one replaces Bolt for your build, and when to stay on Bolt.
The 2026 prompting guides of Lovable, Bolt and v0 all say prompt wording changes the output. So a single prompt cannot benchmark a builder. Why prompt sensitivity is a validity threat, and what a fixed, versioned prompt suite looks like.
AI app builders swap default models and scaffolding almost weekly. Read from five 2026 vendor changelogs: why an undated benchmark score decays, and the versioning protocol BuilderProof uses to keep scores reproducible.
