0.3Wh / request for Google
2.9Wh / request for ChatGPT
That does however reference the same paper as your linked articles, which I can't find without a paywall: https://www.sciencedirect.com/science/article/abs/pii/S2542435123003653?dgcid=author
I'd love to know how they came up with that number for ChatGPT, but it looks like I was a bit off with my estimates regardless. There's probably some scaling efficiencies they're taking advantage of at that size.