https://deepmind.google/models/gemma/gemma-4/
https://developer.nvidia.com/ai-models#:~:text=NVIDIA%20Nemo...
https://www.microsoft.com/en-us/research/blog/phi-4-reasonin...
I'm 99% sure it was one-and-done, box ticked, and now they can be mentioned in comments like this.
Should they be interested in advancing state of the art open models?
Generally, it is conspicuous how American companies are absent when it comes to state of the art open models. Meta tried for some time but it seems they've given up.
For AI, the most profitable part of the value chain is selling inference. None of the big American companies want to release a leading edge model as open source because this would drive the price of inference to $0. Meanwhile, open source AI models are a huge strategic initiative for China. Having commodity Chinese models that are as good as the leading edge American models from 6 months ago forces the American companies to keep paying more and more money to train better and better models since the amount of time they can collect rent on a model they've previously trained is limited to 6 months.
https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/
Meta/Llama: "What am I, chopped liver?"
I thought the thing keeping inference above $0 was the hardware, and even if that were free there's still the tyranny of the Landauer Limit.
The notable exception is of course the google play services, which is also strategic (they control the OEMs with this, among other things).
And the drivers, but that's mostly not them I think (they could possibly have required open source drivers though)
"The world doesn't go round. It flips over!"