A look at the Nvidia-OpenAI deal, where Nvidia will invest in $10B tranches; sources say OpenAI informed Microsoft about the deal a day before it was signed (MacKenzie Sigalos/CNBC)

MacKenzie Sigalos / CNBC:
A look at the Nvidia-OpenAI deal, where Nvidia will invest in $10B tranches; sources say OpenAI informed Microsoft about the deal a day before it was signed  —  ABILENE, Texas - Sam Altman had a deadline.  OpenAI's CEO was headed to Texas to unveil his company's next big infrastructure push …