Recently, the much-watched AI startup Perplexity AI, backed by Amazon founder Jeff Bezos, has been negotiating with several well-known brands, including Nike and Marriott International, to launch a 'Sponsored Q&A' advertising system by the end of the year. This system aims to challenge Google's dominance in the $300 billion digital advertising market. Based in San Francisco, Perplexity AI is developing a brand-new advertising model that allows brands to bid on 'sponsored questions.'