Stripe Head of Design Katie Dill on Preventing Zombie UIs with AI

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Speaking at Lenny's Summit, Katie Dill, Head of Design at Stripe, addressed the risk of creating generic 'zombie UIs' with AI. She argued against merely using AI to build existing interfaces faster and presented four principles to elevate design standards and creativity.

Key points

  1. AI should be used to raise the quality ceiling, not merely speed up baseline production.
  2. Maintain a clear point of view.
  3. Encode your standards directly into the machine.
  4. Do not confuse done with good.
  5. Unleash creativity and artistry.

Why it matters

The widespread use of generative AI in interface design risks producing bland, homogenous interfaces. Dill's principles provide product designers with a framework to integrate AI without sacrificing quality, intent, or distinctive brand identity.

Analysis

Dill's talk highlights a growing issue in AI-assisted workflows: rapid output often creates a false sense of completion. Her core warning—not to mistake 'done' for 'good'—emphasises that AI should augment design judgment rather than replace critical thinking and creative ambition.

Original post

Lenny Rachitsky

@lennysan · 16 October 2026

Head of Design at Stripe on how to stop creating zombie UIs t.co/CPOePWA5SG t.co/Co7tnlyW0l

4.7k likes97 replies6.2k bookmarks301.8k views

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More posts in the thread (1)
  1. Full talk here t.co/C1tEiMwIGH
Selected replies (5)
  • @signulll @lennysan @lil_dill contrarian take: none of this matters in the longer term. & the examples presented are way better than what would’ve been. :)
  • @wwalmink @signulll @lennysan @lil_dill The Korean BBQ is great counter-example. A homepage with amateur MySpace vibes would tempt me more to visit the restaurant than something that looks like every other website. Not saying AI can’t make that, but the average of all websites is not a good fit for most businesses.
  • @jyothiwrites @lennysan @lil_dill Curious how this thinking applies to Stripe’s own experience. I find the homepage copy generic (AI slop at its best) and the product is a feature junkyard, the sheer number of features feels overwhelming. Where’s the clarity? How does Stripe’s own experience measure up to t.co/8xJF5ynYS1
  • @MarcusSpillane @lennysan @lil_dill "Don't confuse done with good" is going to haunt every Figma file I've ever called finished.
  • @yfilipch @lennysan @lil_dill night of the living dashboards

Mentioned links

Summary generated by AI (Gemini 3.8 Flash, 18 October 2026). It may contain errors – the original source is authoritative.

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