DeepSeek vs Perplexity: UI comparison
How DeepSeek (DeepSeek) and Perplexity (Perplexity AI) compare on a desktop screen in the week of October 19, 2026: 3 differences and 4 similarities, measured from each product's weekly screenshot.
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Differences
- DeepSeek shows 5 menu items outside the sidebar; Perplexity shows 6.
- DeepSeek's message box covers more of the screen than Perplexity's (9.5% vs 7.5%).
- Perplexity's sidebar takes 19% of the screen width, DeepSeek shows no sidebar.
Similarities
- 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
DeepSeek
No menu changes have been recorded for DeepSeek yet.
Perplexity
Week of October 12, 2026, compared with the week of October 5, 2026:
- The sidebar item Sessions is now labeled Recents.