Another possible reason is that Google simply doesn't want to give its rivals access to the chips, which it likely spent a lot of time and money developing.
We don't yet know what exactly the TPU is best used for. Analyst Patrick Moorhead said he expects the chip will be used for inferencing, a part of machine learning operations that doesn't require as much flexibility.
Right now, that's all Google is saying. We still don't know which chip manufacturer is building the silicon for Google. Holzle said that the company will reveal more about the chip in a paper to be released this fall.
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