How do I choose the focus or search mode in Perplexity AI?

Perplexity AI usually lets you choose the focus or search mode from the prompt area before you submit a query. Depending on the current interface, you may see options such as a general web search, academic sources, writing help, or other specialized modes. If those options are visible, pick the one that best matches what you want to ask, then enter your question and run the search. If you do not see a mode selector right away, look for a button, dropdown, or icon near the search box, since the layout can change over time. Some versions also adapt based on the type of question, so a broad question may use a general search mode automatically, while a more specific research question may surface source focused results. If you are unsure which mode to use, choose the one that matches your goal. General search is best for broad questions, source based or academic modes are better for research, and writing oriented modes are useful when you want help drafting or refining text. If you still cannot find the control, check the current web page for any help or support links, since the interface may differ by device or account type.