Perplexity AI, an AI search startup, announced its plan to launch advertising on its app during the fourth quarter, marking a significant step in monetizing its platform. The company will adopt a CPM pricing model for ads, with prices exceeding $50 per thousand impressions. Advertisements will cover key sectors such as technology, health and pharmaceuticals, arts and entertainment, finance, and food and beverages. Perplexity's strategy includes allowing advertisers to sponsor "related questions" under answers and purchasing display ads on the right side of them. This move signals Perplexity's commitment to expanding its revenue streams while leveraging its AI capabilities to enhance user experience.