Kimi K2 Thinking: open source AI matches performance of leading proprietary systems
A new open source AI model from Chinese startup Moonshot AI has matched or exceeded the performance of leading proprietary systems, including OpenAI’s GPT-5 and Anthropic’s Claude Sonnet 4.5, according to multiple benchmarks. Carl Franzen reports for VentureBeat that the Kimi K2 Thinking model achieved 44.9 percent on Humanity’s Last Exam, 60.2 percent on BrowseComp, …