Perplexity vs ChatGPT search

How each one answers

Perplexity is built around the search box. You ask a question and get a short answer with numbered links beside the claims. The results layout makes the sources easy to scan, so you can open two or three pages and compare them quickly.

ChatGPT search is one feature inside a general chat product. It searches when it decides a question needs current information, or when you pick search from the tools menu. OpenAI's help center says responses can include inline citations and a Sources panel, and it warns that results and citations can be incomplete, outdated or incorrect.

Both tools handle follow-up questions, but they feel different. Perplexity keeps the focus on the question and its sources, so a follow-up often reads like a refined search. ChatGPT search lets you move from a search into writing, coding or analysis in the same conversation, which helps with a memo or a rough draft. Choose the tool that fits your next step, not just the first answer.

What the accuracy test shows

In a March 2025 study, the Tow Center for Digital Journalism at Columbia tested eight AI search tools with queries drawn from 200 news articles across 20 publishers. Across all the tools, more than 60 percent of answers were wrong. Perplexity answered incorrectly 37 percent of the time, the lowest share in the test. ChatGPT Search answered every query, but 57 percent of its answers were completely incorrect.

The study covered news, so results on other topics may differ. Still, it shows that a cited answer can be wrong, and that a tool can sound confident while being inaccurate. Whichever tool you use, treat a link as the start of a check, not the end of one.

Which one to choose

Pick Perplexity when you want quick questions answered with links you can open right away. Pick ChatGPT search when you want to keep working on the same topic in one thread, rewrite a draft, or ask for a table after the search. Both are useful for fast lookups. Neither should be your only check for a figure you will publish.

Plans, usage limits and search providers change often. Check each tool's current help page before you rely on it for work. If you use either tool for school or work, keep a note of the query, the date and the links it returned. A saved record shows where a claim came from, even after the tool's answer changes.

Checklist

• Ask the same question in both tools and compare the links they give.
• Open every cited page and find the sentence that supports the claim.
• Note which tool gives sources you can trust for your topic.
• Use the chat thread for follow-ups, not as the final source for facts.
• Check the current usage limits on each tool's help page.

Questions & answers

Sources for this entry

• Nieman Lab: AI search engines fail to produce accurate citations in over 60% of tests
• Fortune: AI search engines confidently wrong citing sources, Columbia study
• OpenAI Help Center: ChatGPT search

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