OpenAI plans to manufacture its own AI chip using TSMC's next-generation 16A process.

On September 3, 2024 (excerpt)

There have been rumors for some time that OpenAI, the developer of ChatGPT and a leading AI development company, has been developing its own AI chips. It has now been revealed that they are planning to manufacture their own AI chips using TSMC's next-generation 16A process. According to reports from multiple industry sources, OpenAI has already reserved the initial production capacity of TSMC's 16A process.