Comparison
ChatGPT vs Perplexity
A side-by-side look at a general-purpose assistant and an answer engine, drawn from their index records.
At a glance
ChatGPT is a general assistant for writing, coding, files, and agents. Perplexity is built as a cited-answer product over web (and research) search. They overlap when ChatGPT browses and when Perplexity chats; they differ in the default job: create and act vs retrieve and cite.
| Dimension | ChatGPT | Perplexity |
|---|---|---|
| Company | OpenAI | Perplexity AI |
| Category | AI Assistants | Answer Engines |
| Business model | Freemium | Freemium |
| Launched | 2022-11 | 2022-12 |
| Availability | Global | Global |
| Primary job | General assistant (write, code, agents) | Cited web / research answers |
| Default output | Conversation, files, and tools | Synthesized answer with sources |
| Category in this index | AI Assistants | Answer Engines |
| Updated | 2026-09-10 | 2026-09-10 |
Details are drawn from each product's record and reflect its last-updated date.
When to choose each
- ChatGPT — When you want a general assistant for drafting, coding, files, GPTs, and longer agent tasks, not only a cited web answer.
- Perplexity — When the job is a sourced answer from the live web or papers, with citations you can open, rather than a general chatbot.
Frequently asked questions
Is ChatGPT with browsing the same as Perplexity?
They overlap. ChatGPT is indexed as a general assistant that can browse; Perplexity is indexed as an answer engine built around cited search. Choose by the default job, not a score.
Which one is better for research?
This index does not rank quality. Perplexity is grouped with answer engines that emphasize citations; ChatGPT is grouped with general assistants. Academic-oriented engines are listed separately in the answer-engines guide.