Source: OpenAI, a major Nvidia customer, plans to buy Google's TPUs; a job listing shows it seeks an engineer to "lead the optimization" of its models on TPUs (Ryan Barwick/The Information)

Ryan Barwick / The Information: Source: OpenAI, a major Nvidia customer, plans to buy Google's TPUs; a job listing shows it seeks an engineer to “lead the optimization” of its models on TPUs — OpenAI plans to buy Google's AI chips, according to a person familiar with the matter, in a boost for a…