You still need hardware to run open source models. It might eat into OpenAI profit but I doubt it will eat into NVIDIA's
If anything more companies in making models business the higher NVIDIA chip demand will be, till we get some proper competition at least. We badly need some open CUDA equivalent so moving off to competition isn't a problem
Nvidia's dream would be for everyone to buy a personal DGX H100 for private local inference. That's where open source could lead. Datacenters are much more efficient in their use of chips.
Exactly. Efficiency use of their chips is the enemy of Nvidia.
Doubt it:
https://en.wikipedia.org/wiki/Jevons_paradox