I don't actually think they're true. One second of Google cloud TPU has roughly the same number of floating point operations then 4 hours of raspberry pi 4B ti

I don't actually think they're true. One second of Google cloud TPU has roughly the same number of floating point operations then 4 hours of raspberry pi 4B time. So 3 minutes of cloud TPU time already covers your whole month of raspberry pi usage. Pretty sure it costs them less than 5$ as well, since they have the hardware anyways.