STORY: The deal marks OpenAI’s first big push to power its AI ambitions after a restructuring last week that gave the ChatGPT maker greater operational and financial freedom.The deal is also a major vote of confidence for the e-commerce giant’s cloud unit, Amazon Web Services, which some investors feared had fallen behind rivals Microsoft and Google in the artificial intelligence race.Overall, Miller said it’s another sign that big companies are saying AI investment is “going to cost us a pretty penny, and we’re completely okay with that.”