The original version of this story appeared in Quanta Magazine. The Chinese AI company DeepSeek released a chatbot earlier this year called R1, which drew a huge amount of attention. Most of it ...

Moonshot released its new Kimi K2 Thinking model on Thursday. It claims to outperform GPT-5 and Sonnet 4.5 on some benchmarks. Open-source AI poses a challenge to proprietary US models. The global AI ...