Chinese AI Firm Moonshot Releases Kimi K2 Model That Outperforms GPT-5 and Claude Sonnet 4.5
Summary
Chinese AI firm Moonshot AI releases Kimi K2 Thinking, an open-source reasoning model that outperforms GPT-5 and Claude Sonnet 4.5, achieving record 44.9% on Humanity's Last Exam benchmark and marking a potential turning point as Chinese models now rival leading US systems.
Key Points
- Chinese AI firm Moonshot AI releases Kimi K2 Thinking, a new reasoning model that outperforms OpenAI's GPT-5 and Anthropic's Claude Sonnet 4.5 across multiple benchmarks
- The open-source model achieves a 44.9% score on Humanity's Last Exam benchmark, setting new records in reasoning, coding and agent capabilities according to researchers
- Industry experts call this a turning point in AI as Chinese open-source models now match or exceed performance of leading US closed-source systems