You didn't include the amortized cost of a Blackwell GPU, which is an order of magnitude larger expense than electricity.

Yeah that's fair (although the original comment was only talking about energy costs).

But this is kind of a worst case cost analysis. I fully expect that the average non-pro Sora 2 video has one to two orders of magnitude less GPU utilization than I listed here (because I think those video tokens are probably generated at a batch size of ~100 per batch).