# DeepSeek vs Perplexity: UI comparison

- Week: week of October 19, 2026 (2026-10-19)
- Page: https://ai-portal-library.dev/compare/deepseek-vs-perplexity
- Open in Compare: https://ai-portal-library.dev/#compare?view=table&mode=portals&week=2026-10-19&portals=deepseek,perplexity&device=desktop

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.

## 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.

## Portal pages

- DeepSeek: https://ai-portal-library.dev/portals/deepseek
- Perplexity: https://ai-portal-library.dev/portals/perplexity

## Screenshots

- DeepSeek, desktop: https://ai-portal-library.dev/img/shots/2026-10-19/deepseek.local.png?v=1792783914717
- Perplexity, desktop: https://ai-portal-library.dev/img/shots/2026-10-19/perplexity.local.png?v=1792783768739