Moonshot AI Releases Kimi K3 Open Source Model with 2.8 Trillion Parameters and Prepares for Hong Kong IPO

On July 17-18, 2026, Moonshot AI officially released its strongest model to date, Kimi K3. The model features 2.8 trillion parameters and a 1 million token context window, making it the world's first open source model exceeding 2 trillion parameters. The complete model weights will be released globally before July 27, 2026. Simultaneously, Moonshot AI has notified investors to adjust company structure in preparation for Hong Kong IPO, potentially completing listing within 6 months. As of June 2026, the company's annual recurring revenue exceeded 300 million dollars, with API revenue accounting for over 70%. Background: Moonshot AI has completed six rounds of financing this year, with the latest pre-money valuation reaching 31.5 billion dollars, a fivefold increase within half a year. In May 2026, the company completed approximately 2 billion dollars in new financing. The Kimi K3 model scored 94.7 in FrontendCodeArena, surpassing Claude Fable 5 (92.1) and GPT-5.6 Sol (93.3). The model natively supports multimodal visual understanding without plugins or API bridges. Impact: - Kimi K3 is the world's largest open source model with 2.8 trillion parameters - Moonshot AI valuation reached 31.5 billion dollars within half a year, fivefold growth - The model outperformed Claude Fable 5 and GPT-5.6 Sol in code generation benchmarks - Hong Kong IPO preparation accelerated, potentially listing within 6 months - Complete model weights release on July 27, 2026 will enable global developer access - API revenue exceeded 210 million dollars annually, demonstrating commercialization capability Summary: Moonshot AI released the world's largest open source model Kimi K3 with 2.8 trillion parameters and 1 million token context window on July 17-18, 2026. The model achieved 94.7 points in FrontendCodeArena, surpassing Claude Fable 5 and GPT-5.6 Sol. The company simultaneously accelerated Hong Kong IPO preparation, with potential listing within 6 months. Moonshot AI's valuation reached 31.5 billion dollars with annual recurring revenue exceeding 300 million dollars. Reference Sources: https://www.sohu.com/a/1051898167_122066679 https://www.zhitongcaijing.com/content/detail/1469378.html http://mguba.eastmoney.com/mguba/article/0/1744948617