Hearth: a booking page for a small ceramics studio · Run 001

v0 vs Lovable

Rank 761.2

Time to build 2m 31s

Rank 170.8

Time to build 1m 10s

Rank 761.2

Time to build 2m 31s

Criterion by criterion

Δ = A − B

Scores for v0 (A) and Lovable (B) by criterion, with signed difference and winner
Criterion	Weight	v0	Lovable	Δ	Winner
Fidelity to brief	20%	3.4	3.6	−0.2	BLovable
Visual hierarchy	20%	3.3	3.5	−0.2	BLovable
Typography	20%	3.2	3.7	−0.5	BLovable
Layout and spacing	20%	3.2	3.4	−0.2	BLovable
Accessibility	20%	2.2	3.5	−1.3	BLovable
Overall	100%	61.2	70.8	−9.6	BLovable

Same brief, one prompt, no tool around it

Claude Fable 5.1
A soft cream page with a light serif headline, a comparison table of classes and a flat bottle, bowl and cup.
Rank 1 · Anthropic
Time to build 2m 47s
71.2
Gemini 4 Argon
A warm, magazine-style page with an italic terracotta headline and numbered class cards.
Rank 2 · Google
Time to build 2m 15s
70.4
GPT-6 Astra
A quiet, editorial page with a large serif headline and a clean class table; the closest to the brief of the five.
Rank 3 · OpenAI
Time to build 1m 36s
70.0
Claude Opus 5.5
A warm cream and terracotta page with a big serif headline and a flat vase, bowl and mug on a shelf.
Rank 4 · Anthropic
Time to build 2m 15s
68.0
GPT-6 Luna
A short, plain cream page with a tight serif headline, abstract clay circles and three simple class cards.
Rank 5 · OpenAI
Time to build 43s
63.6