AI Interface Library

ChatGPT vs Perplexity: UI comparison

OpenAI · Perplexity AI · week of October 19, 2026

How ChatGPT (OpenAI) and Perplexity (Perplexity AI) compare on a desktop screen in the week of October 19, 2026: 5 differences and 3 similarities, measured from each product's weekly screenshot.

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ChatGPT UI screenshot, desktop, week of October 19, 2026
ChatGPT · desktop · week of October 19, 2026
Perplexity UI screenshot, desktop, week of October 19, 2026
Perplexity · desktop · week of October 19, 2026

Differences

  • ChatGPT shows 11 menu items; Perplexity shows 17.
  • Perplexity's message box covers more of the screen than ChatGPT's (7.5% vs 3.9%).
  • Perplexity shows more clickable items than ChatGPT (~22 vs ~17).
  • ChatGPT's sidebar is wider than Perplexity's (27% vs 19% of the screen width).
  • ChatGPT uses 4 text sizes; Perplexity uses 3.

Similarities

  • Neither shows a note about the AI's limits.
  • Both were captured in dark mode.
  • Both message boxes sit in the middle third of the screen.

Latest menu changes

ChatGPT

Week of October 19, 2026, compared with the week of October 12, 2026:

  • The Chat item no longer appears in the top bar.
  • The Work item no longer appears in the top bar.

Perplexity

Week of October 12, 2026, compared with the week of October 5, 2026:

  • The sidebar item Sessions is now labeled Recents.

Portal pages

How the analysis is made