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Banja Lab / Benchmarks / Test

AYGAT-0005UI components · hard

Keyboard-operable accordion with disclosure buttons and arrow navigation

The same task, run on 27 models. Compare the outputs side by side, or open any one in a popup to inspect it.

Top result: claude-opus-4-8 (low reasoning) at 100.0% composite. Lowest: deepseek-v4-flash at 0.0%. 27 models compared on this task.

How it ran
  • Each model was given the brief below in a fresh, isolated session with no access to our tools, and returned a single self-contained index.html (inline CSS and JS, no external requests, no build step).
  • The rendered output was scored 1 to 5 on brief fidelity, visual design, craft, and impact by a four-family vision panel - Anthropic (Claude Opus 4.8), OpenAI (GPT-5.5), Google (Gemini 3.1 Pro), and xAI (Grok 4.3) - using one identical prompt so the scores compare. The published judge score is leave-one-family-out: a model is never scored by a judge of its own family, so same-family self-preference is removed.
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). Build an accordion FAQ following the WAI-ARIA accordion pattern. Requirements: - At least three accordion items. Each header is a real <button> with the ids acc-shipping, acc-returns, acc-billing, each carrying aria-expanded (all "false" on load) and aria-controls pointing at its panel. - Each panel (ids panel-shipping, panel-returns, panel-billing) starts hidden. Activating a header button with Enter or Space flips its aria-expanded to "true" and reveals its panel; activating again collapses it. - When a header button has focus, ArrowDown moves focus to the next header and ArrowUp to the previous (wrapping at the ends). The accordion must be fully operable with the keyboard alone. Use plain, accessible markup.

Anthropicclaude-opus-4-8
Low reasoning
claude-opus-4-8 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 100.0%
Open
Composite 100.0%Objective 100.0%
Open outputFull run
Anthropicclaude-opus-4-8
Medium reasoning
claude-opus-4-8 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 100.0%
Open
Composite 100.0%Objective 100.0%
Open outputFull run
Anthropicclaude-fable-5
High reasoning
claude-fable-5 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 100.0%
Open
Composite 100.0%Objective 100.0%
Open outputFull run
OpenAIgpt-5.5
High reasoning
gpt-5.5 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 100.0%
Open
Composite 100.0%Objective 100.0%
Open outputFull run
OpenAIgpt-5.4-mini
High reasoning
gpt-5.4-mini rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 100.0%
Open
Composite 100.0%Objective 100.0%
Open outputFull run
xAIgrok-composer-2.5-fast
default reasoning
grok-composer-2.5-fast rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 100.0%
Open
Composite 100.0%Objective 100.0%
Open outputFull run
Anthropicclaude-opus-4-8
High reasoning
claude-opus-4-8 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 100.0%
Open
Composite 100.0%Objective 100.0%
Open outputFull run
Anthropicclaude-opus-4-8
High reasoning
claude-opus-4-8 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 99.1%
Open
Composite 99.1%Objective 99.1%
Open outputFull run
Anthropicclaude-opus-4-8
Extra-high reasoning
claude-opus-4-8 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 99.1%
Open
Composite 99.1%Objective 99.1%
Open outputFull run
Anthropicclaude-opus-4-8
Max reasoning
claude-opus-4-8 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 99.1%
Open
Composite 99.1%Objective 99.1%
Open outputFull run
Anthropicclaude-fable-5
High reasoning
claude-fable-5 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 99.1%
Open
Composite 99.1%Objective 99.1%
Open outputFull run
DeepSeekdeepseek-v4-pro
default reasoning
deepseek-v4-pro rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 99.1%
Open
Composite 99.1%Objective 99.1%
Open outputFull run
Anthropicclaude-haiku-4-5
High reasoning
claude-haiku-4-5 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 98.1%
Open
Composite 98.1%Objective 98.1%
Open outputFull run
Moonshotkimi-k2.7-code
default reasoning
kimi-k2.7-code rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 98.1%
Open
Composite 98.1%Objective 98.1%
Open outputFull run
Googlegemini-3.1-pro-preview
High reasoning
gemini-3.1-pro-preview rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 98.1%
Open
Composite 98.1%Objective 98.1%
Open outputFull run
Googlegemini-3.5-flash
default reasoning
gemini-3.5-flash rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 98.1%
Open
Composite 98.1%Objective 98.1%
Open outputFull run
Googlegemini-3.1-flash-lite
default reasoning
gemini-3.1-flash-lite rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 98.1%
Open
Composite 98.1%Objective 98.1%
Open outputFull run
xAIgrok-4.3
default reasoning
grok-4.3 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 98.1%
Open
Composite 98.1%Objective 98.1%
Open outputFull run
xAIgrok-build-0.1
default reasoning
grok-build-0.1 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 98.1%
Open
Composite 98.1%Objective 98.1%
Open outputFull run
Anthropicclaude-haiku-4-5
default reasoning
claude-haiku-4-5 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 98.1%
Open
Composite 98.1%Objective 98.1%
Open outputFull run
Anthropicclaude-sonnet-4-6
High reasoning
claude-sonnet-4-6 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 97.2%
Open
Composite 97.2%Objective 97.2%
Open outputFull run
Anthropicclaude-sonnet-5
High reasoning
claude-sonnet-5 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 96.3%
Open
Composite 96.3%Objective 96.3%
Open outputFull run
Anthropicclaude-sonnet-5
High reasoning
claude-sonnet-5 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 96.3%
Open
Composite 96.3%Objective 96.3%
Open outputFull run
Zhipuglm-5.2
default reasoning
glm-5.2 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 94.4%
Open
Composite 94.4%Objective 94.4%
Open outputFull run
Anthropicclaude-sonnet-4-6
High reasoning
claude-sonnet-4-6 rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 94.4%
Open
Composite 94.4%Objective 94.4%
Open outputFull run
xAIgrok-4.20-reasoning
default reasoning
grok-4.20-reasoning rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 0.0%
Open
Composite 0.0%Objective 0.0%
Open outputFull run
DeepSeekdeepseek-v4-flash
default reasoning
deepseek-v4-flash rendering of the Keyboard-operable accordion with disclosure buttons and arrow navigation benchmark - composite 0.0%
Open
Composite 0.0%Objective 0.0%
Open outputFull run