Perplexity and ChatGPT both answer questions in plain language, but they start from different places. This guide is for people deciding between an AI search tool and a general AI assistant. We compared them using official pages, with prices checked on 2026-11-01.
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Researching questions with cited web sourcesPerplexity
Free; Pro subscription Perplexity is an AI search and research assistant that answers questions using web information and shows citations. You can ask follow-up questions in a conversation, use voice input and work with files. Paid tiers add expanded research and access to more models. Because it shows where its answers come from, it's handy when you want to check sources yourself.
Pick it if you mostly use AI to look things up and want citations you can click and verify.
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General help: writing, images, voice, files, codingChatGPT
Free plan; paid plans ChatGPT is OpenAI's AI chatbot for conversation and assistance. OpenAI says it supports answering questions, voice conversations, image creation, file use, research and coding. It's a general assistant rather than a search tool first, so it covers more kinds of tasks, from drafting emails to making images. There's a free plan, and OpenAI lists paid prices by region.
Pick it if you want one assistant for writing, creating and problem-solving, not just searching.
Choose Perplexity if your main use is research and you value cited answers. Choose ChatGPT if you want a broad helper for writing, images, voice and coding. Both run on the same set of platforms and both have free plans, so you can try both on the same questions before deciding. Some people end up using Perplexity for lookups and a general assistant for everything else.