An official told Reuters that’s (AMZN.O) cloud division has attracted thousands of clients to test out its service as it competes with Microsoft (MSFT.O) and Google (GOOGL.O) in a crucial area of artificial intelligence.

On Wednesday, the company also unveiled new AI tools, such as a programme for creating more conversational customer service agents, access to Cohere’s technology, and a healthcare system for producing clinical notes following a patient visit.