AI Interface Library

Le Chat vs Perplexity: UI comparison

Mistral AI · Perplexity AI · week of October 19, 2026

How Le Chat (Mistral AI) and Perplexity (Perplexity AI) compare on a desktop screen in the week of October 19, 2026: 2 differences and 5 similarities, measured from each product's weekly screenshot.

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Le Chat UI screenshot, desktop, week of October 19, 2026
Le Chat · desktop · week of October 19, 2026
Perplexity UI screenshot, desktop, week of October 19, 2026
Perplexity · desktop · week of October 19, 2026

Differences

  • Le Chat shows 10 menu items; Perplexity shows 17.
  • Perplexity's message box covers more of the screen than Le Chat's (7.5% vs 4.2%).

Similarities

  • Both sidebars take a similar share of the screen width (20% vs 19%).
  • Both use 3 text sizes.
  • 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

Le Chat

Week of October 5, 2026, compared with the week of September 28, 2026:

  • The icon of a top bar button changed (bubble-clock icon → dashed bubble icon).

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