Competitive benchmark
Benchmarks
Three tools, three questions. They do not compete — they answer different questions about design quality.
Hallmark prevents slop at generation time. Slop-eval scores slop after the fact. Designesy verifies contract conformance. This page maps what each catches that the others do not.
The three tools
They do not compete
The positioning
A complete design quality pipeline uses all three: hallmark to generate, slop-eval to catch slop, designesy to verify the contract. They occupy different positions on the design-verification spectrum — not the same position.
Generation → hallmark (prevent slop at emit time, 58 gates)
Evaluation → slop-eval (score existing designs, 108 tells + 2 positive axes)
Verification → designesy (verify contract conformance, 36 checks + MCP delivery)
Shared checks
Where the three tools overlap. The intersection is narrow — most checks are unique to each tool.
v06, v22 — Contrast (WCAG AA + APCA)gates 40-41X5 (critical)v03 — Focus-visible ringsgate 26X14v05 — prefers-reduced-motiongate 27—v11 — No transition:allgate 10—v28 — Reading width 45-75chgate 25—v26 — Font family count ≤3gate 37—v02 — No horizontal scrollgate 34—v24 — Touch targets ≥44px (WCAG 2.5.8)gate 26 (partial)—What designesy catches that they do not
20 checks with no hallmark or slop-eval equivalent. These are the uncontested layers — contract conformance, Unicode security, Core Web Vitals, forced-colors, AI disclosure, and the Cadence typography suite.
What they catch that designesy does not
designesy gaps. These are the AI-slop aesthetic detection, structural-variety, signature, and cohesion checks. designesy does not ask “does this look AI-generated” — it verifies contract conformance.
The moat
designesy’s uncontested layers
The layers no competitor approaches. These are not features — they are the category-of-one positioning.
Self-score on designesy.org
designesy99.1% A (31 PASS / 0 FAIL / 1 WARN / 4 SKIP)v26 WARN: font family count (4, threshold ≤3)hallmarkNot run (skill, not URL API)Would flag: pure #000/#fff (near-pure), zero-chroma neutrals (graphite is chromatic), nav structureslop-evalNot run (skill, not URL API)Would flag: cool blue-charcoal dark (warm graphite, may pass), mono house voice (minor), focus states (should pass)hallmark and slop-eval are agent skills, not URL-based APIs. They cannot score a URL without an LLM agent loading the skill and evaluating. designesy is the only one with a programmatic URL-based scoring endpoint — a structural advantage for CI/CD integration, leaderboards, and automated pipelines.
Provenance
Sources
Live research via AnySearch MCP (2026-07-30). designesy live score verified via POST to https://www.designesy.org/api/score (99.1% A, 36 checks). hallmark taxonomy from Nutlope/hallmark/skills/hallmark/references/slop-test.md. slop-eval taxonomy from fabricioctelles/skills/skills/slop-eval/references/tells.md.