国产模型新盛况！王座易主：Kimi K2 Thinking开源超闭源

Core Insights - The article discusses the launch of the Kimi K2 Thinking model by Moonshot AI, which has sparked significant online discussion due to its advanced capabilities that surpass leading closed-source models like GPT-5 and Claude Sonnet 4.5 [2][3][5] - Kimi K2 Thinking is positioned as a major advancement in open-source AI, marking a potential turning point for domestic large models in the industry [10][42] Model Performance - Kimi K2 Thinking has demonstrated superior performance in various benchmark tests, achieving a score of 44.9 in the Humanity's Last Exam (HLE), surpassing models such as Grok4 and GPT-5 [11][42] - The model excels in multi-turn tool invocation and continuous reasoning, achieving state-of-the-art (SOTA) levels in several tests, including autonomous web browsing and adversarial search reasoning [10][30] Cost Efficiency - Despite its trillion-parameter scale, Kimi K2 Thinking operates at a low cost, with API pricing significantly lower than that of GPT-5, at $0.15 for cached input and $2.5 per million tokens output [15][16] - The training cost for the Kimi K2 Thinking model was reported to be $4.6 million [34] Technical Innovations - The model utilizes INT4 quantization and is designed for continuous interaction, allowing it to perform up to 200-300 consecutive tool calls without human intervention [32][38] - Kimi K2 Thinking's architecture includes more experts and less human intervention, enhancing its reasoning capabilities [35] Open Source and Licensing - Kimi K2 Thinking is open-source and available on Hugging Face under a modified MIT license, granting broad commercial and derivative rights, making it one of the most permissively licensed advanced models [47] - A limitation is imposed that requires prominent labeling of "Kimi K2" if the software exceeds 100 million active users or $20 million in monthly revenue [48]