Is DeepSeek a democracy-killer? Seven US tech firms lost more than $1 trillion on Monday as a Chinese competitor spooked investors. Some think we have entered a new global race.
Trillion dollar panic over Chinese AI

Glossary
Large Language Model - A type of artificial intelligence (AI) programme that uses deep learning to analyse and generate human language.
Stock Market - A series of exchanges where shares in public companies are issued, bought and sold.
OpenAI - An American artificial intelligence company. It says its mission is to "benefit all of humanity".
ChatGPT - An Artificial Intelligence chatbot released in November 2022.
Silicon Valley - A global centre of technological innovation in Northern California. It is home to many start-up and global technology companies including Apple, Facebook and Google.
Misinformation - Incorrect or misleading information unintentionally presented as fact. It can be contrasted with disinformation or deliberate lies.