London-based PolyAI, which makes AI voice assistants for call centres, raised $50M led by Hedosophia, with money from Nvidia and others, at a $500M+ valuation news t.co

Stephanie Stacey / Financial Times: London-based PolyAI, which makes AI voice assistants for call centres, raised $50M led by Hedosophia, with money from Nvidia and others, at a $500M+ valuation  —  London-based start-up behind artificial intelligence call centre assistants secures funding  —  London-based PolyAI has secured …