Previously little-known Chinese startup DeepSeek has dominated headlines and app charts in recent days thanks to its new AI chatbot, which sparked a global tech sell-off that wiped billions off Silicon Valley’s biggest companies and shattered assumptions of America’s dominance of the tech race.

DeepSeek is just one of an array of companies developing AI models and applications. Here’s a guide to a number of the biggest players in China.

What is DeepSeek? Everything we know about the Chinese AI that has ‘changed everything’ - Why is DeepSeek better than ChatGPT?

Chinese tech startup DeepSeek said it was hit by a cyber attack on Monday that disrupted users’ ability to register on the site.

Chinese AI firm DeepSeek says it is facing "large-scale malicious attacks", which are affecting its services. Chinese state media is citing cyber security experts who say the attacks are originating from US-based IP addresses,

The emergence of the DeepSeek chatbot has sent Silicon Valley into a frenzy, with calls to go faster on advancing artificial intelligence and beat communist-led China before it is too

Despite the controversy surrounding the Chinese open-source model, it has received the blessing of US companies that say their versions of it are safer and feature less censorship.

Microsoft MSFT.O has made Chinese startup DeepSeek's R1 artificial intelligence model available on its Azure cloud computing platform and GitHub tool for developers, the U.S. company said on Wednesday.