The Future of the Global Open-Source AI Ecosystem: From DeepSeek to AI+

China's open-source AI ecosystem has undergone significant transformation since the "DeepSeek Moment" in January 2025, fostering a collaborative environment among major AI organizations like Alibaba, Tencent, ByteDance, and Baidu. These companies have embraced open-source strategies to varying degrees, facilitating the development and integration of AI models across industry sectors. The move towards open-source has become the default approach, promoting scalable and efficient engineering systems that are deeply integrated with China's extensive compute and data infrastructure. Notably, companies like Qwen have gained prominence by expanding into diverse AI model families, while Tencent and ByteDance have strategically released open-source components to enhance community engagement and adoption. Baidu has shifted towards open-source with renewed investment in its framework PaddlePaddle and its AI chip, Kunlunxin. This ecosystem, bolstered by a national strategy focusing on compute and energy efficiency, has shifted from isolated breakthroughs to sustainable, large-scale deployments, embedding AI deeply in industrial processes and fostering autonomous AI systems. As China's open-source AI ecosystem matures, it presents both challenges and opportunities for global engagement, emphasizing practical, scalable AI solutions over peak performance pursuits.