https://promptshelf.blog/blog A curated library of AI prompts by profession and use case. Copy-paste prompts for teachers, marketers, developers, HR, and more. en-us undefined (PromptShelf Editorial) undefined (PromptShelf Editorial) Mon, 11 May 2026 00:00:00 GMT https://promptshelf.blog/blog/chatgpt-vs-perplexity-research https://promptshelf.blog/blog/chatgpt-vs-perplexity-research We ran the same research query on free ChatGPT and free Perplexity. Side-by-side test, citation hygiene scored, and who should pick which tool in 2026. Mon, 11 May 2026 00:00:00 GMT undefined (PromptShelf Editorial) chatgptperplexitycomparisonresearchai-tools