Chinese AI start-up Moonshot has introduced the Kimi K3 large language model boasting one million context tokens. The model is means to take on Anthropic’s Opus 4.8 based on competitive coding benchmarks reported in early tests. Benchmark leaks suggest Kimi K3 performance aims at Anthropic’s Claude Fable5 openly. Industry watchers say the release intensifies the AI competition between Chinese and Western developers. Moonshot positions the model as a step in narrowing the performance gap against leading global alternatives.