Perplexity vs DeepSeek
Which is better in 2026? Five scores, side by side.
Perplexity is the better app overall, scoring 8.5 to 7.4. Perplexity wins on 4 of the 5 scores, DeepSeek on 1.
Researchers, students and curious people who want answers backed by sources
Students and developers who want strong reasoning help without paying
Score by score
The details
| Feature | Perplexity | DeepSeek |
|---|---|---|
| Category | AI Assistants | AI Assistants |
| Category rank | #4 of 8 | #8 of 8 |
| Developer | Perplexity AI | DeepSeek |
| Pricing | Free + paid plans | Free |
| Usable for free | Yes | Yes |
| iPhone & iPad | ✓ | ✓ |
| Android | ✓ | ✓ |
| Mac | ✓ | — |
| Windows | ✓ | — |
| Web | ✓ | ✓ |
Strengths and weaknesses
Perplexity
- Sources make answers easy to verify
- Fast, clean answers to factual questions
- Pro plan bundles models from several AI labs
- Weaker for long-form writing and creative work
- Cited sources can be low quality or misread
Perplexity is built for finding things out. Every answer comes with linked sources, so you can check claims quickly, and paid plans let you switch between leading models from several AI labs. Research mode writes longer reports, and Spaces keep projects organized. It is less suited to long creative writing or open-ended conversation. If most of your AI use is search, it can replace a lot of web browsing.
Full Perplexity review
DeepSeek
- Strong reasoning and coding help at no cost
- Shows its reasoning process in DeepThink mode
- Open-weight models you can run yourself
- Data is stored on servers in China
- Basic app with no voice mode or image creation
DeepSeek offers capable reasoning and coding help completely free, and its models are released as open weights. DeepThink mode shows its reasoning step by step, and web search is built in. The app is basic, though, with no voice mode or image generation, and servers can be busy at peak times. Its privacy policy says data is stored in China, and several governments have restricted its use on official devices.
Full DeepSeek review
