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Rank #9 · 5/5 tasks scored

Claude Sonnet 4.6 (high)

AURUM MAISON delivers a cohesive luxury pen experience with an impressive raw WebGL2 PBR configurator, persistent cart/pricing, five-step checkout, and a multi-step agentic assistant that performs real UI actions. Floor requirements are largely met, but gallery view switching is cosmetic-only, there is no mobile navigation or wishlist, locale switching mostly reformats prices rather than translating copy, and the mobile buy path is a long scroll without a sticky CTA.

  • Elo 1456
  • Reliability 100% (5/5 runs)
  • Efficiency 31.6/100
78
Global capability index (weighted mean of scored tasks)

Capability profile

Five task axes (each normalized to its 0–100 task score).

Frontend & Commerce CraftApplied On-device AIIntegration EngineeringOn-device ML & Continual LearningAgentic Planning & Tool Use

Per-task scores

TaskScoreBaseExcel.JudgeRobust.TierElo
Premium Storefront8843.214.820.89.2Full1774
Client-side WebGPU Product Q&A6422.112.6245Mid1055
Microsoft Dynamics 365 Order Integration954518.421.310Full1711
In-browser Fashion Fit Estimation487.56.723.310Low1163
Autonomous Buying Agent96451823.310Full1403

Score composition per task: 45 base + 20 excellence + 25 judge + 10 robustness. "n/a" = no data for that component in this run (weights renormalized). Failed runs are reliability events, not 0-scores.

Task A — Premium Storefront

88base 43.2/45 + excellence 14.8/20 + judge 20.8/25 + robustness 9.2/10 · tier full · agent 77/100

Score breakdown

  • Functional20 / 20
  • Visual Design18 / 20
  • UX16 / 20
  • Engineering15.6 / 20
  • AI Quality18 / 20

Engineering in detail

  • Structure / maintainability / readability9 / 10
  • Performance2.8 / 4
  • Accessibility1.8 / 3
  • Error-freeness2 / 3

Lighthouse

69Performance
93Accessibility
96Best Practices
100SEO

CLS 0.000 · LCP 2927ms · Page weight 314 KB · axe 3 (crit 1)

Live preview

The actual storefront generated by the model — interactive.Open in new tab ↗

Screenshots

Claude Sonnet 4.6 (high) — Desktop · Light
Desktop · Light
Claude Sonnet 4.6 (high) — Desktop · Dark
Desktop · Dark
Claude Sonnet 4.6 (high) — Mobile
Mobile

Verified interactions

Behavior actually driven in the browser (not just present in the DOM).

  • Add to cart workspass
  • Dark mode togglesunknown
  • Variant changes price/galleryunknown
  • Search filters the catalogunknown
  • AI assistant performs an actionpass
  • Cart persists across reloadunknown

Structured data & SEO

✓ Product✓ Offer✓ AggregateRating✓ BreadcrumbList
  • ✓ Meta description
  • ✓ Canonical URL
  • ✗ Open Graph image
  • 100% of images have alt text (0/0)

Tokens & cost

Token usage is reported by the agent run. Cost is an estimate (tokens × configured rates); shows “—” until rates are set.

13.54MTotal tokens
13.36MInput tokens
184.6kOutput tokens
Est. cost
Cost / 100 pts

Runtime metrics

2685.4sRun time
304Tool calls
529.8sTime to first tool
2.9sTime to first render
1Runtime errors

Deductions (−2)

  • −1 Copy-paste template
  • −1 Console errors

Feature matrix (24/25)

  • 3D configurator (WebGL)present
  • Product gallerypresent
  • Image zoompresent
  • Color variantspresent
  • Size selectionpresent
  • Live stockpresent
  • Pricepresent
  • Discountpresent
  • Buy boxpresent
  • Sticky behaviorpresent
  • Reviewspresent
  • Cross-sellingpresent
  • Search / filterpresent
  • Mobile navigationmissing
  • Wishlistpresent
  • Cartpresent
  • Multi-step checkoutpresent
  • Currency / locale switchpresent
  • AI assistantpresent
  • Dark modepresent
  • Animationspresent
  • Accessibility (basics)present

Per-task results

Each task this model also ran, with the same depth as Task A where the task allows it: static-app tasks show screenshots and a live preview; backend / agent tasks show the harness probe breakdown and key metrics.

Client-side WebGPU Product Q&A

63.7

Applied On-device AI · static app

  • Tier Mid
  • Agent 91/100
  • Auto 37/75
  • Contract ✓
  • Base 22.1/45
  • Excellence 12.6/20
  • Judge 24/25
  • Robustness 5/10

A polished, production-quality assistant with real WebLLM token streaming, live TTFT/tokens-per-sec readouts, and visible field-level citations backed by a thorough deterministic fallback engine. Input is disabled during generation and there is no cancel control, but loading, WebGPU-unavailable, and error paths all degrade gracefully without dead-ends.

Client-side WebGPU Product Q&A on Client-side WebGPU Product Q&A — Desktop · Light
Desktop · Light
Client-side WebGPU Product Q&A on Client-side WebGPU Product Q&A — Desktop · Dark
Desktop · Dark
Client-side WebGPU Product Q&A on Client-side WebGPU Product Q&A — Mobile
Mobile
Live preview — interactive app

Loads the actual app generated by this model.Open in a new tab ↗

Probe breakdown — automated 37/75
  • Harness hook present & well-formed__ask returns { answer, sources? }6/6passed
  • In-scope factual answers grounded in catalog3/6 in-scope factual correct8/16failed
  • Multi-fact reasoning answers0/2 multi-fact correct0/8failed
  • Refuses out-of-scope questions0/2 out-of-scope refused0/7failed
  • Refuses adversarial / fabrication bait2/2 adversarial refused7/7passed
  • Answers cite their catalog source8/8 in-scope answers cited a source5/5passed
  • On-device model initialization tierreported tier=unavailable, engine=deterministic-lookup (WebLLM failed: [Invalid ShaderModule (unlabeled)] is invalid due to a previous error. - While validating compute s), navigator.gpu=true3/10failed
  • Latency within budget (TTFT + tokens/sec)ttftMs=5 (budget 30000), tokensPerSec=n/a2/4failed
  • No off-allowlist traffic after loadoff-allowlist hosts: us.aws.cdn.hf.co0/6failed
  • Robust to hostile input (empty / very long / rapid-fire)empty=true longInput=true rapidFire=true6/6passed

Key metrics

5Time to first token (ms)
6676Model load (ms)
28Network requests
0Off-allowlist requests
2Console errors
12Q&A total
5Q&A passed
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Microsoft Dynamics 365 Order Integration

94.7

Integration Engineering · backend / agent task

  • Tier Full
  • Agent 78/100
  • Auto 80/80
  • Contract ✓
  • Base 45/45
  • Excellence 18.4/20
  • Judge 21.3/25
  • Robustness 10/10

Clean four-module design with complete entity mappers, a solid retrying D365 client with upsert and idempotency, and rich validation errors with field-level details. Observability is adequate but minimal—failures are logged safely while successful syncs are not.

Backend / agent task — evaluated by deterministic harness probes against a mock service. There is no visual preview for this submission.

Probe breakdown — automated 80/80
  • Happy-path order maps to the correct D365 entity graph18/18 graph checks passed18/18passed
  • Per-field mapping completeness & accuracy vs goldmean field accuracy 100.0% over 4 orders20/20passed
  • Idempotent on retry (one key => exactly one sales order)salesorders=1 (want 1), lines=2 (want 2), replayFlag=true12/12passed
  • Recovers from injected faults (429/500/reset) with retry + backoffgraph 100%, faultsServed=4, soPosts=3, accPosts=212/12passed
  • Customer upsert: lookup-or-create without duplicatesreusedNoDup=true, salesorderRefsSeed=true, newCreated=true8/8passed
  • Structured 4xx on malformed input with no partial writes3/3 rejected with structured 4xx, partialWrites=false8/8passed
  • No credentials hardcoded or loggedleakInSource=false, leakInLogs=false, readsProcessEnv=true2/2passed

Key metrics

124API calls
4Retries
4p50 latency (ms)
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In-browser Fashion Fit Estimation

47.5

On-device ML & Continual Learning · static app

  • Tier Low
  • Agent 88/100
  • Auto 20/70
  • Contract ✓
  • Base 7.5/45
  • Excellence 6.7/20
  • Judge 23.3/25
  • Robustness 10/10

Strong probabilistic UX with a confidence bar, tiered confidence copy, per-metric ranges, and a full size probability chart, plus explicit return-adjustment messaging. On-device privacy and upfront consent are clear and credible; the main gap is no dedicated low-confidence warning beyond the meter and color cues.

In-browser Fashion Fit Estimation on In-browser Fashion Fit Estimation — Desktop · Light
Desktop · Light
In-browser Fashion Fit Estimation on In-browser Fashion Fit Estimation — Desktop · Dark
Desktop · Dark
In-browser Fashion Fit Estimation on In-browser Fashion Fit Estimation — Mobile
Mobile
Live preview — interactive app

Loads the actual app generated by this model.Open in a new tab ↗

Probe breakdown — automated 20/70
  • Loads & produces well-formed metricsnot well-formed ({"ok":true,"value":{"measurements":null,"size":null,"confidence":0,"error":"bad_image"},"ms":5})4/8failed
  • Real on-device model + runtime loadedreal model (external=true, backend=webgpu)6/6passed
  • Measurement accuracy vs gold (MAE)meanMAE=20cm per-metric={"chest":20,"waist":20,"hip":20,"inseam":20,"shoulder":20}0/16failed
  • Recommended size top-1 accuracytop1=0/80/10failed
  • Recommended size within ±1within1=0/80/6failed
  • Online learning lowers holdout error (CORE)holdout err 5 -> 50/14failed
  • Graceful no-person / bad-image / non-imagenoperson:bad_image✓ bad:bad_image✓ notimage:bad_image✓4/4passed
  • No image egress / on-device onlyoffAllowlist=0 bigUploadsAfterEstimate=06/6passed

Key metrics

8345Model load (ms)
1Estimate latency (ms)
20Mean abs. error (cm)
20MAE chest (cm)
20MAE waist (cm)
20MAE hip (cm)
20MAE inseam (cm)
20MAE shoulder (cm)
0Size top-1
5Holdout error (before)
5Holdout error (after)
0Off-allowlist requests
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Autonomous Buying Agent

96.3

Agentic Planning & Tool Use · backend / agent task

  • Tier Full
  • Agent 90/100
  • Auto 85/85
  • Contract ✓
  • Base 45/45
  • Excellence 18/20
  • Judge 23.3/25
  • Robustness 10/10

The agent documents and executes a clear eight-step plan with strong pre-feasibility analysis, coupon/shipping optimization, and multiple recovery paths (OOS fallback, checkout coupon rejection). Success trade-off explanations are somewhat templated, but impossibility reporting is detailed and honest.

Backend / agent task — evaluated by deterministic harness probes against a mock service. There is no visual preview for this submission.

Probe breakdown — automated 85/85
  • Agent runs and writes a valid report for every scenario8/8 — 01-happy-hoodie:ok 02-budget-tight-tee:ok 03-coupon-optimality-sneaker:ok 04-deadline-express-tee:ok 05-faults-recovery-hoodie:ok 06-impossible-budget-hoodie:ok 07-oos-size-hoodie:ok 08-impossible-stock-sneaker:ok6/6passed
  • Scenario goal achieved end-to-end (or impossible handled correctly)8/8 — 01-happy-hoodie:ok 02-budget-tight-tee:ok 03-coupon-optimality-sneaker:ok 04-deadline-express-tee:ok 05-faults-recovery-hoodie:ok 06-impossible-budget-hoodie:ok 07-oos-size-hoodie:ok 08-impossible-stock-sneaker:ok24/24passed
  • No placed order ever exceeds the scenario budget8/8 — 01-happy-hoodie:ok 02-budget-tight-tee:ok 03-coupon-optimality-sneaker:ok 04-deadline-express-tee:ok 05-faults-recovery-hoodie:ok 06-impossible-budget-hoodie:ok 07-oos-size-hoodie:ok 08-impossible-stock-sneaker:ok12/12passed
  • Hard constraints satisfied (in-stock, size, quantity, deadline)6/6 — 01-happy-hoodie:ok 02-budget-tight-tee:ok 03-coupon-optimality-sneaker:ok 04-deadline-express-tee:ok 05-faults-recovery-hoodie:ok 07-oos-size-hoodie:ok13/13passed
  • Best valid coupon applied for the purchased cart6/6 — 01-happy-hoodie:ok 02-budget-tight-tee:ok 03-coupon-optimality-sneaker:ok 04-deadline-express-tee:ok 05-faults-recovery-hoodie:ok 07-oos-size-hoodie:ok12/12passed
  • Recovers from injected API faults and still completes the goal2/2 — 05-faults-recovery-hoodie:ok 07-oos-size-hoodie:ok10/10passed
  • Impossible goals reported honestly with NO order placed2/2 — 06-impossible-budget-hoodie:ok 08-impossible-stock-sneaker:ok8/8passed
  • Excellence scenario goal achieved end-to-end7/8 — x1-excellence-quantity-coupon:ok x2-excellence-coupon-required:ok x3-excellence-deadline-budget:ok x4-excellence-fault-storm:ok x5-excellence-impossible-deadline:ok x6-excellence-impossible-stock-depth:ok x7-excellence-multi-product-cart:x x8-excellence-zero-slack:ok9/10failed
  • Excellence: optimal cart + coupon under tight budgets5/6 — x1-excellence-quantity-coupon:ok x2-excellence-coupon-required:ok x3-excellence-deadline-budget:ok x4-excellence-fault-storm:ok x7-excellence-multi-product-cart:x x8-excellence-zero-slack:ok3/4failed
  • Excellence: survives heavy fault storms2/2 — x4-excellence-fault-storm:ok x8-excellence-zero-slack:ok3/3passed
  • Excellence: subtle impossibilities handled honestly2/2 — x5-excellence-impossible-deadline:ok x6-excellence-impossible-stock-depth:ok3/3passed

Key metrics

8Scenarios
8Scenarios passed
8Excellence scenarios
7Excellence passed
18Excellence points
20Excellence max
187API calls
25Faults injected
103Agent steps
98p50 agent step (ms)
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