Benchmarks
v0 vs Lovable (2026): Benchmarked Across 6 Axes
A reproducible, documentation-sourced scorecard: v0 by Vercel scores 47/60 and Lovable 44/60 across BuilderProof's six axes. See where each one actually wins in 2026.
8 min read8
Tag
#ai app builders
5 posts tagged.
Benchmarks
Lovable vs Bolt (2026): benchmarked head-to-head across 6 axes
A reproducible, documentation-based head-to-head: Lovable vs Bolt scored against BuilderProof's six published axes, with an honest per-axis verdict. July 2026, community-editable.
9 min read10
Methodology
Proposing an Auth and Access-Control Posture axis for AI app builders (July 2026)
A proposed community-editable BuilderProof axis scoring how well the app an AI builder generates protects sign-in and per-row data access. Five 20-point sub-axes, a fixed protocol, and a provisional documentation-based cohort table for July 2026.
8 min read30
Speed
Speed-to-first-paint across AI app builders (June 2026)
We timed two clocks for each builder: speed-to-first-paint (prompt to first rendered preview) and time-to-working-app (prompt to all acceptance checks passing). v0 by Vercel was fastest to first paint at a median 9 seconds; Base44 and Bolt.new followed. The ranking shifts for time-to-working-app, where full-app builders pay an upfront cost but reach a runnable result with fewer manual edits. We report medians of five cold runs on a fixed network profile, with the full distribution and caveats below.
5 min read55
Output quality
Benchmarking output quality across 7 AI app builders (June 2026)
We gave seven AI app builders one identical brief and scored the output on visual fidelity, code structure and functional correctness using a published, double-rated rubric. Lovable led on overall output quality (93/100), with v0 close behind on component fidelity and Bolt.new strong on framework breadth. Differences were largest in code structure, not visuals: every builder produced something that looked right, but maintainability and correctness diverged sharply. This page documents the brief, the rubric and the per-builder results, with every figure sourced.
6 min read48