Perplexity

Positioned between traditional search and chat assistants, Perplexity runs a live web search for each query and synthesizes the results into a short answer with numbered citations, making verification part of the default experience.

Compared with ChatGPT, Perplexity is more search-first: answers lean on current sources and attribution rather than model knowledge alone. Compared with Google, it reduces click-through work but depends on the quality of its source selection and summarization.

The free tier is sufficient for casual use, while Pro at $20/mo adds expanded advanced searches, file analysis and access to multiple frontier models. Accuracy remains the central consideration, since synthesis can misrepresent a source. For research-heavy roles that value speed with traceability, it is one of the leading tools in the category.