Moonshot AI Unveils Kimi K3, a 2.8 Trillion-Parameter Open-Weight Model

Kimi K3 is Moonshot AI’s new flagship: 2.8 trillion parameters, a 1-million-token context window, native multimodality, and a set of vendor-reported benchmarks that put it ahead of Claude Opus 4.8 and GPT-5.5 on most agentic suites — and within a point or two of Claude Fable 5 and GPT-5.6 Sol on sev