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China's AI Upstart Moonshot Stuns Valley Again with a $4.6M Wonder

14 days ago
  • #AI
  • #Open-source
  • #Moonshot AI
  • Moonshot AI released Kimi K2 Thinking, an open-source reasoning model matching GPT-5 and Claude 4.5 Sonnet, trained for just $4.6 million.
  • The model excels in benchmarks like Humanity’s Last Exam and BrowseComp, outperforming GPT-5 in some tests.
  • Moonshot AI was founded by Yang Zhilin, a Tsinghua and Carnegie Mellon alumnus with experience at Google Brain and Meta AI.
  • Alibaba holds a 36% stake in Moonshot AI, valuing the startup at around $3.3 billion, and backs China's top AI labs.
  • Moonshot AI differentiates from DeepSeek by focusing on agentic behavior and tool use, optimizing for action over deliberation.
  • Kimi K2 Thinking's low-cost training challenges U.S. AI labs, signaling a potential efficiency gap favoring Chinese innovation.