This terrible and vague stereotyping about "China" while having no clue about the subject should have no place on HN but somehow always creeps in and is upvoted by someone. DeepSeek is not "China", they had nobody to copy from, they released their first 7B reasoning model back in April 2024, it was ahead of then-SotA models in math and validated their approach. They did a ton of new things besides training a reasoning model, and likely have more to come, as they have a completely different background than most AI companies. It's more of a cross-pollination of different areas of expertise.