Perplexity is raising new investment that would value the search startup at $9 billion, a source familiar with the matter said on Tuesday, a sign of heightened investor enthusiasm around artificial intelligence companies.California-based Perplexity is set to raise $500 million in the new funding round led

Perplexity AI is in the final stages of raising $500 million in funding at a $9 billion valuation, a source familiar with the situation told CNBC.