Microsoft will invest $1 billion in OpenAI and work with the San Francisco-based Artificial Intelligence powerhouse to create a computational platform of "unprecedented scale" to accelerate the development of advanced forms of AI. The expanded partnership gives Microsoft and its Azure cloud platform an influential ally in its competition with Google, Amazon and other rivals in the high-stakes race to develop next-generation AI platforms and technologies. Microsoft CEO Satya Nadella has called out AI as a pivotal area for the future of the company. OpenAI was formed in 2016 by leaders including Elon Musk, the Tesla and SpaceX CEO; and Sam Altman, former president of the Y Combinator startup accelerator. Musk, who has sounded the alarm over the risks of AI, said in May that he was no longer involved inOpenAI.