Chinese AI start-up Moonshot has introduced the Kimi K3 large language model with one million context tokens. The model is means to take on Anthropic’s Opus 4.8 according to competitive coding benchmarks seen in early tests. Benchmark leaks show Kimi K3 performance targets Anthropic’s Claude Fable5 head-on. Industry watchers say the release intensifies the AI competition among Chinese and Western developers. Moonshot positions the model as a step towards narrowing the performance gap with leading global alternatives.