Perplexity vs ChatGPT: which is better for research?
Short answer: For quick research where every claim needs a link, Perplexity is built for it: it searches and answers with numbered citations. ChatGPT is the broader assistant (writing, files, study mode) and also has search and deep research. Either way, open the sources: a citation shows where the bot looked, not that the page backs the sentence.
| Perplexity | ChatGPT | |
|---|---|---|
| Built around | Search with citations | General assistant |
| Modes | Quick, Pro Search, Deep Research (App Store listing) | Search, deep research (limited on Free) |
| Organizing | Library of threads | Projects (all plans) |
| Developer API | Agent API (Responses format, /v1/agent) | Responses API |
Tutorials: Perplexity · ChatGPT.
Related questions
Is Perplexity free?
There's a free app; Pro, Max and credit packs are in-app purchases on the US App Store. Perplexity's own plan pages blocked our checker, so we couldn't confirm free-tier limits.
Is Perplexity Pro worth it?
Only if you hit the free limits on research you'd otherwise do by hand. Check the billing period at checkout.
Where these facts come from
- docs.perplexity.ai: Agent API format, endpoints, effort levels, multi-provider access
- Perplexity on the App Store: features and in-app purchases
- perplexity.ai help and plan pages blocked our checker (403) on Oct 29, 2026
- ChatGPT pricing: plans, features, context sizes
- developers.openai.com/api/docs: Responses API, Structured Outputs, Evals
- help.openai.com and platform.openai.com blocked our checker (403) on Oct 29, 2026
Checked Oct 29, 2026. Plans change, so confirm on the official page before you pay.
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