DeepSeek and other Chinese companies. Not only do they publish research, they also put their resources where their mouth (research) is. They actually use it and prove it through their open models.

Most research coming out of big US labs is counter indicative of practical performance. If it worked (too) well in practice, it wouldn't have been published.

Some examples from DeepSeek:

https://arxiv.org/abs/2405.04434

https://arxiv.org/abs/2502.11089