On the occasion of LLMZoo's fourth anniversary, the co-founders sent out a letter to all staff members. They emphasized that on-device AI is poised to become the primary battleground in the age of general AI and outlined three key strategic priorities: propelling on-device AI technology forward with the "Density Law," enhancing the scalability of vertical industry benchmarks, and revolutionizing internal company collaboration processes through AI integration. The letter took stock of the company's achievements over the past four years, highlighting that the global downloads of the MiniCPM series of open-source models have surpassed 50 million, with on-device models being deployed across various scenarios. Looking forward, AI is expected to progress towards full-modality perceptual streaming, higher-density computing capabilities, and autonomous decision-making in actions. LLMZoo will leverage this momentum to construct on-device embodied brains, drive intelligence across diverse industries with the "on-device models + agents" approach, and strive to become an AI-driven organizational model. The company aims to establish itself as a defining force and leader in the era of general AI, as well as the foundational infrastructure for intelligence across multiple sectors.