Perhaps no stock was more profoundly affected by the news from DeepSeek than Nvidia (NVDA -3.67%). In a sense, DeepSeek validated its dominance by announcing its H800 accelerators

AI investors are desperately trying to find clues on the real impact of DeepSeek on chip demand in the future and gauge how the breakthrough in China would impact US companies.

Here’s what you need to know about DeepSeek, the Chinese AI startup that rattled markets as its app dethroned OpenAI's as the most-downloaded free app in the U.S. on Apple.