Test results

Pick a model to see how accessible its components are, with the accessibility skill off and on.

Claude Haiku 5.5

Skill version 2.3

Totals for the whole run, across 3 generations of each of the 22 components
Measure	Skill off	Skill on
Unique failed acceptance criteria	56	4
of which WCAG	36	2
of which Best practice	20	2
Total cost (US dollars)	$0.14	$0.69

Button

Results, totals across all generations

Unique failed acceptance criteria

Skill off

2 fails

WCAG: 1 fail
Best practice: 1 fail

Skill on

0 fails

WCAG: 0 fails
Best practice: 0 fails

Efficiency, average per generation

Input tokens include cache reads.

Cost in USD

Input tokens

Skill off: 1,941 tokens
Skill on: 155,857 tokens

Output tokens

Skill off: 2,274 tokens
Skill on: 9,353 tokens

Turns

Skill off: 1 turn
Skill on: 9 turns

Time

Skill off: 8 seconds
Skill on: 41 seconds

Cost

Skill off: $0.0014
Skill on: $0.0092

Prompt given to the model

Build a Button component in a single self-contained HTML file (inline CSS and JS, no build step, no external libraries). Include two buttons on the page: one enabled button labelled "Save changes" and one disabled button labelled "Delete". Output the complete code in one HTML code block.

Generated code

Skill off: Generation 1, skill off (opens in a new tab)
Generation 2, skill off (opens in a new tab)
Generation 3, skill off (opens in a new tab)
Skill on: Generation 1, skill on (opens in a new tab)
Generation 2, skill on (opens in a new tab)
Generation 3, skill on (opens in a new tab)

Showing 12 of 12 criteria

Labels and messaging1 criterion

The button has a visible label.WCAG 3.3.2Automated
Skill off
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
Skill on
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass

Semantic markup5 criteria

The button's role is included in the accessibility tree.WCAG 4.1.2Automated
Skill off
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
Skill on
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
The button's accessible name is included in the accessibility tree.WCAG 4.1.2Automated
Skill off
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
Skill on
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
The button's accessible name contains the text of its visible label.WCAG 2.5.3Automated
Skill off
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
Skill on
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
The button's accessible name matches its visible label exactly, or at least starts with the exact text of the visible label.Best practiceAutomated
Skill off
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
Skill on
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
If the button is disabled, the button's disabled state is included in the accessibility tree.WCAG 4.1.2Automated
Skill off
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
Skill on
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass

Keyboard4 criteria

The button is focusable using a keyboard.WCAG 2.1.1Browser
Skill off
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
Skill on
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
The button is activated by pressing the Space or Enter keys on the keyboard.Best practiceBrowser
Skill off
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
Skill on
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
The button has a focus style when it receives focus using a keyboard.WCAG 2.4.7Browser
Skill off
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
Skill on
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
The keyboard focus style still renders in forced-colours mode (e.g. Windows High Contrast Mode).Best practiceBrowser
Skill off
3/3 failed
- Generation 1: Fail
- Generation 2: Fail
- Generation 3: Fail
Skill on
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass

Visual design2 criteria

All text meets the minimum contrast ratio of 4.5:1 against the background colour, or 3:1 for large-scale text.WCAG 1.4.3Automated
Skill off
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
Skill on
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass
If the button uses a custom focus style, the focus indicator has a contrast ratio of at least 3:1 against its background colour.WCAG 1.4.11Browser
Skill off
3/3 failed
- Generation 1: Fail
- Generation 2: Fail
- Generation 3: Fail
Skill on
3/3 passed
- Generation 1: Pass
- Generation 2: Pass
- Generation 3: Pass