Chinese AI startup DeepSeek is rattling markets. Here’s what to know

A Chinese artificial intelligence startup is rattling Silicon Valley and Wall Street after it demonstrated AI models on par with OpenAI’s — for a fraction of the cost and energy.

At just over a year old, Hangzhou-based DeepSeek released results for its latest open-source reasoning models, DeepSeek-R1, last week. The models showed a comparable performance to…