After more than eight months of research and development, Google has unveiled its most powerful A.I. so far. But only parts of it are widely available.
The OpenAI fracas most likely cements control of one of the most powerful and promising technologies on the planet under one of this country’s tech titans.
Mr. Nadella moved fast to hire Sam Altman, who was pushed out of OpenAI on Friday, and asserted his company’s role in its partnership with the A.I. start-up.