Moonshot AI launched Kimi K3, a 2.8-trillion-parameter model, which is the largest AI model developed in China to date. The K3 model outperformed Anthropic's Claude Opus 4.8 and OpenAI's GPT 5.5 on coding and general-agent benchmarks, despite trailing Claude Fable 5 and GPT 5.6 Sol overall. The launch pressured Chinese AI rivals, with Z.ai falling 28%, MiniMax dropping 16%, and Alibaba declining 4% as investors raised performance expectations.
Chinese frontier models are closing the capability gap with US systems, increasing competitive pressure on domestic rivals and driving demand for efficient compute infrastructure.