Why China Is Giving Away Its Best AI Models for Free

Moonshot AI's Kimi K3 model has alarmed Silicon Valley with its performance and cost efficiency. Moonshot plans to release the model's weights for free, targeting US users and intensifying US-China AI rivalry. Open-weight models give developers more control and are cheaper, forcing US giants like OpenAI, Google, and Anthropic to reconsider their closed approaches. However, these models are not fully open-source, as training data and other components remain private. Companies can still profit from open-weight models through cloud services, support, and ecosystem building. China's support for open-weight AI is driven by practical constraints like chip access and political strategy to expand influence. This has sparked backlash in the US tech sector, with companies like IBM, Microsoft, Meta, Nvidia, and Perplexity urging against restrictions on open-weight models. The rise of Chinese open-weight models pressures US labs to release more capable open models, though companies like Anthropic are unlikely to do so. The long-term outcome remains uncertain, but Chinese models will continue challenging American AI dominance.