AgentPlays
Perplexity vs ChatGPT
Perplexity is built around web search with cited sources; ChatGPT is a general assistant that can also search.
Quick verdict by use case
- Quick research with sources you can click: Perplexity.
- Writing, brainstorming and voice chat: ChatGPT.
- Free use: Both have free plans; Perplexity's free plan limits Pro Searches and model choice.
Pricing and free tier, side by side
| Perplexity | ChatGPT | |
|---|---|---|
| What it does | An AI answer engine that searches the web and cites its sources. | OpenAI's general-purpose AI chat assistant for questions, writing, files, images and voice. |
| Is it actually free? | Free tier with limits | Free tier with limits |
| Free plan limits | Free plan: use the automatic 'Best' model in Search plus a limited number of Pro Searches; you cannot pick advanced models manually. | Free plan: unlimited everyday text chats (subject to abuse guardrails), with limited file uploads, image creation, voice chats, deep research, memory and Codex access. |
| Pricing | Free; Pro $17/month billed annually; Max $167/month billed annually. | Free; Go $8/month; Plus $20/month; Pro from $100/month; Business and Enterprise plans priced per user. |
| Best for | Research questions where you want to click through to the sources. | Everyday questions, drafting, summarizing documents and voice chats on web and phone. |
| Not great for | Long creative writing or work that does not need web search. | Anything where a wrong answer is costly without checking sources yourself. |
| Last checked | 2026-10-13 | 2026-10-13 |
Official site: perplexity.ai ↗ Official site: chatgpt.com ↗
Strengths and weaknesses
Perplexity
Good for: Research questions where you want to click through to the sources.
Not great for: Long creative writing or work that does not need web search.
ChatGPT
Good for: Everyday questions, drafting, summarizing documents and voice chats on web and phone.
Not great for: Anything where a wrong answer is costly without checking sources yourself.
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Other options
Gemini
Google's AI assistant, built into the Gemini app and Google's apps.
Kagi
A paid, ad-free search engine with an AI assistant.
Consensus
An AI search engine for peer-reviewed research with cited answers.
Claude
Anthropic's AI assistant for writing, analysis, long documents and coding help.
More comparisons
Sources
- Perplexity: perplexity.ai pricing ↗ (checked 2026-10-13)
- ChatGPT: chatgpt.com pricing ↗ (checked 2026-10-13)