Kimi K2 Thinking

Moonshot AI, a Chinese startup valued at $3.3 billion, released its open-source Kimi K2 Thinking model, reportedly outperforming OpenAI’s GPT-5 on key benchmarks. This challenges U.S. AI dominance, leveraging a cost-efficient Mixture-of-Experts architecture. The model’s performance, particularly in reasoning and coding, and significantly lower API costs are creating competitive pressure. While some experts caution against overstating its capabilities, Kimi K2 Thinking’s release marks a “turning point” and puts pressure on US developers to manage cost and performance expectations.