Mark Zuckerberg has long championed Meta Platforms Inc.’s open-source approach to artificial intelligence software — which lets other companies access and build on top of its technology — saying that having an American model as the underpinning of new products was key to ensuring US dominance over China in AI.

With AI, though, it’s different. The stakes are different – the impact on our society and our personal lives is different. So it helps to know a little more about how AI agents, LLMs and neural nets, are making decisions and processing what’s around them.

Meta and other AI competitors are facing challenges from China's DeepSeek as its new AI model outperforms competitors at lower costs.