China outmanoeuvred the US with the launch of DeepSeek. But the US’s biggest tech companies are fighting back in the AI race.

Despite supportive earnings, DeepSeek shocked technology stocks. In the busiest week of the earnings season, tariffs and the ...

The artificial intelligence (AI) landscape shifted dramatically this week with the emergence of DeepSeek, a Chinese startup that's challenging the status quo. Tech stocks tumbled in response, as did ...