Which AI models produce the most accessible HTML?

View profile for Ben Royce

Global Chief Technology Officer @ AKQA

So which models produce HTML that has the least accessibility errors, and at what cost? Mapped it out here (bottom left is the best). This is helpful for understanding which models are most compliant for those with disabilities and do it efficiently. Qwen and Gemini 2.5 Flash lead the pack. Hat tip to Ben Ogilvie for pointing me to this: aimac.ai

  • chart, bubble chart
Joe Devon

Founder: A11y Audits, #GAAD | Podcaster | Public Speaker

1mo

Thanks for posting this! Note: a major update is imminent that will: 1. Fix a couple of bugs 2. Test the top ~20 programming models according to OpenRouter's actual usage of these models 3. Daily update at noon, adding and removing new models automatically as they get more or less usage 4. Adding a chart similar to yours that shows accessibility per dollar. I wanted to do a Pareto Frontier chart, but 20 models aren't enough data. Maybe we'll add it in 6 months when we have enough historical data.

Ben Ogilvie

Director of Accessibility Strategy at ArcTouch (AKQA / WPP) | GAAD Foundation Board of Directors | A11yNYC (Accessibility New York City) Meetup co-organizer

1mo

Ben Royce glad you’re finding it useful; and definitely looking forward to the updates Joe Devon mentioned!

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