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Pricing page with a working billing toggle and FAQ accordion

One task across 30 published runs. Inspect the scores and outputs together, with each run's execution method shown.

All experimentsModel resultsDesigner buildsCompare models
Task
WEB-0003
Domain
Websites
Difficulty
medium

Leading published run: claude-opus-4-8 (low reasoning) at 100.0% composite. Lowest: claude-haiku-4-5 at 0.0%. 30 published runs shown on this task.

How this task was evaluated

Results are ordered by this task's published score. API runs use one prompt and one completion; agent runs use a coding harness with tools and iteration. Inspect the execution method when comparing results.

Objective scores use the benchmark's execution checks. Judge scores use a vision panel's fixed rubric; the published score leaves out a model's own family. Missing values are labelled rather than treated as zero.

Read the brief

Build a single self-contained page as one HTML file (`index.html`) that renders with no build step and no network calls (inline all CSS and JS, no external fonts or scripts). The page combines two interactive parts: - a pricing section with three tiers and a monthly/annual billing toggle implemented as an accessible switch (role="switch" with aria state, id="billing"); clicking the toggle must change every displayed price between its monthly and annual value, and - a FAQ section (id="faq") of at least three question/answer items where each answer is collapsed by default; clicking a question must reveal (make visible) its own answer, and clicking it again may collapse it. The first answer must have id="a1". Use plain, readable, accessible markup.

Anthropicclaude-opus-4-8
Low reasoning
Agent harness2026-07-21
claude-opus-4-8 rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 100.0%
Open
Composite 100.0%Objective 100.0%
Open outputFull run
Anthropicclaude-opus-4-8
Extra-high reasoning
Agent harness2026-07-21
claude-opus-4-8 rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 100.0%
Open
Composite 100.0%Objective 100.0%
Open outputFull run
Anthropicclaude-sonnet-5
High reasoning
Agent harness2026-07-21
claude-sonnet-5 rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 100.0%
Open
Composite 100.0%Objective 100.0%
Open outputFull run
Anthropicclaude-fable-5
High reasoning
Agent harness2026-07-09
claude-fable-5 rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 100.0%
Open
Composite 100.0%Objective 100.0%
Open outputFull run
xAIgrok-4.5
High reasoning
API single-shot2026-07-09
grok-4.5 rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 100.0%
Open
Composite 100.0%Objective 100.0%
Open outputFull run
xAIgrok-composer-2.5-fast
default reasoning
Agent harness2026-06-25
grok-composer-2.5-fast rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 99.9%
Open
Composite 99.9%Objective 99.9%
Open outputFull run
Anthropicclaude-opus-4-8
Medium reasoning
Agent harness2026-07-21
claude-opus-4-8 rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 99.6%
Open
Composite 99.6%Objective 99.6%
Open outputFull run
xAIgrok-4.3
default reasoning
API single-shot2026-07-03
grok-4.3 rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 99.6%
Open
Composite 99.6%Objective 99.6%
Open outputFull run
Moonshotkimi-k3
default reasoning
API single-shot2026-07-17
kimi-k3 rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 99.4%
Open
Composite 99.4%Objective 99.4%
Open outputFull run
Anthropicclaude-opus-4-8
High reasoning
Agent harness2026-07-21
claude-opus-4-8 rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 99.3%
Open
Composite 99.3%Objective 99.3%
Open outputFull run
Anthropicclaude-opus-4-8
Max reasoning
Agent harness2026-07-21
claude-opus-4-8 rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 99.3%
Open
Composite 99.3%Objective 99.3%
Open outputFull run
OpenAIgpt-5.5
High reasoning
API single-shot2026-07-17
gpt-5.5 rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 96.2%
Open
Composite 96.2%Objective 96.2%
Open outputFull run
OpenAIgpt-5.6-luna
High reasoning
API single-shot2026-07-09
gpt-5.6-luna rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 96.2%
Open
Composite 96.2%Objective 96.2%
Open outputFull run
xAIgrok-4.5
Medium reasoning
API single-shot2026-07-09
grok-4.5 rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 96.1%
Open
Composite 96.1%Objective 96.1%
Open outputFull run
Zhipuglm-5.2
default reasoning
API single-shot2026-07-17
glm-5.2 rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 95.8%
Open
Composite 95.8%Objective 95.8%
Open outputFull run
Googlegemini-3.1-flash-lite
default reasoning
API single-shot2026-06-23
gemini-3.1-flash-lite rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 95.8%
Open
Composite 95.8%Objective 95.8%
Open outputFull run
OpenAIgpt-5.6-sol
High reasoning
API single-shot2026-07-09
gpt-5.6-sol rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 95.7%
Open
Composite 95.7%Objective 95.7%
Open outputFull run
OpenAIgpt-5.6-sol
Max reasoning
API single-shot2026-07-09
gpt-5.6-sol rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 95.7%
Open
Composite 95.7%Objective 95.7%
Open outputFull run
OpenAIgpt-5.6-terra
High reasoning
API single-shot2026-07-09
gpt-5.6-terra rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 95.7%
Open
Composite 95.7%Objective 95.7%
Open outputFull run
xAIgrok-build-0.1
default reasoning
API single-shot2026-06-25
grok-build-0.1 rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 95.4%
Open
Composite 95.4%Objective 95.4%
Open outputFull run
xAIgrok-4.20-reasoning
default reasoning
API single-shot2026-06-25
grok-4.20-reasoning rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 60.0%
Open
Composite 60.0%Objective 60.0%
Open outputFull run
OpenAIgpt-5.4-mini
High reasoning
API single-shot2026-06-23
gpt-5.4-mini rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 58.5%
Open
Composite 58.5%Objective 58.5%
Open outputFull run
Googlegemini-3.1-pro-preview
High reasoning
API single-shot2026-06-23
gemini-3.1-pro-preview rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 58.3%
Open
Composite 58.3%Objective 58.3%
Open outputFull run
xAIgrok-4.5
Low reasoning
API single-shot2026-07-09
grok-4.5 rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 58.3%
Open
Composite 58.3%Objective 58.3%
Open outputFull run
Anthropicclaude-sonnet-4-6
High reasoning
Agent harness2026-07-21
claude-sonnet-4-6 rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 57.8%
Open
Composite 57.8%Objective 57.8%
Open outputFull run
Moonshotkimi-k2.7-code
default reasoning
API single-shot2026-07-17
kimi-k2.7-code rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 57.6%
Open
Composite 57.6%Objective 57.6%
Open outputFull run
DeepSeekdeepseek-v4-flash
default reasoning
API single-shot2026-06-25
deepseek-v4-flash rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 56.5%
Open
Composite 56.5%Objective 56.5%
Open outputFull run
DeepSeekdeepseek-v4-pro
default reasoning
API single-shot2026-06-25
deepseek-v4-pro rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 20.6%
Open
Composite 20.6%Objective 20.6%
Open outputFull run
Googlegemini-3.5-flash
default reasoning
API single-shot2026-06-23
gemini-3.5-flash rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 16.7%
Open
Composite 16.7%Objective 16.7%
Open outputFull run
Anthropicclaude-haiku-4-5
High reasoning
Agent harness2026-07-09
claude-haiku-4-5 rendering of the Pricing page with a working billing toggle and FAQ accordion benchmark - composite 0.0%
Open
Composite 0.0%Objective 0.0%
Open outputFull run

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