Amazon is reportedly in talks to invest over $10 billion in OpenAI, which plans to use Amazon's Trainium AI chips. This news is bullish for Amazon as it deepens its involvement in AI and positions its custom chips for significant adoption. While the market might perceive this as bearish for Nvidia, AMD, or Broadcom, the author believes the overall AI chip ecosystem is expanding, suggesting continued growth for these companies despite OpenAI's use of Amazon's chips.