AI-powered search engine Perplexity has launched an “agent,” of sorts, called Perplexity Assistant, which Perplexity says uses reasoning, search, and apps to help with daily tasks. Perplexity Assistant, which is available for Android devices as of Thursday in the Perplexity app, can take “multi-app actions,” the company says, like hailing a ride or searching for a song. Because Perplexity’s search engine powers it, Perplexity Assistant has access to the web. That allows the assistant to do thing...