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Yes, p3.2xlarge in us-east-1b is currently sitting at $0.3204 spot. That's only marginally more than p2.xlarge (at $0.2259 in us-east-1e).

I'm sure this will change with demand, though. :(

There are enough companies out there with deep pockets that want to do some ML. They'll pay pay those prices, no questions asked.

Per the marketing material it's up to a PFLOP of mixed precision (is that the same as just saying "half precision"? or is it 8 bit?) for $25/hour.

I can easily see people paying full price for that. Still, spot price is currently $2.40.

It must be a misplaced comma. 15.7 single precision can never translate to 125 mixed.

The reason Nvidia quote 120 TLFOPS mixed precision on V100 is because of the new tensor core.

Also all startups with (basically) unlimited aws credits

Yep agreed. Didn't want to post the spot pricing since it changes all the time :)