Perplexity AI, a search engine startup focused on artificial intelligence, aims to double its valuation to $9 billion in its next funding round. The company was valued at $3 billion in June and is now looking to raise approximately $500 million. The startup competes in the generative AI space alongside leaders like OpenAI and has raised three funding rounds this year. Perplexity AI has faced plagiarism accusations from media outlets for allegedly scraping content to generate its answers. The company has denied these claims.