AWS News Blog EC2 Price Reduction (C4, M4, and T2 Instances) I am happy to be able to announce that an EC2 price reduction will go in to effect on December 1, 2016, just in time to make your holiday season just a little bit more cheerful! Our engineering investments, coupled with our scale and our time-tested ability to manage our capacity, allow us to identify and pass on the cost savings to you.