China’s Moonshot AI launched Kimi K3 on July 17, a 2.8 trillion parameter open-source model that reportedly outperforms some of America’s best AI systems. The Trump administration is now weighing new regulations to tighten the screws on Chinese AI development, including potential export restrictions and an executive order targeting open-source AI.
Here’s the thing: the model didn’t just match US competitors. According to Moonshot AI, Kimi K3 beat Anthropic’s Opus 4.8 and OpenAI’s GPT-5.5 on most coding and agent benchmarks.
What Kimi K3 actually means
At 2.8 trillion parameters, Kimi K3 is now the world’s largest open-source AI model.
The model does have limits. It still trails elite closed-source systems like Anthropic’s Fable 5 and GPT-5.6 Sol.
