In a joint letter released Friday, the companies argued that open AI models accelerate innovation, strengthen cybersecurity and help ensure the U.S. remains competitive as countries race to develop increasingly powerful AI systems. While defending open AI development, the coalition acknowledged that companies found to have illegally extracted value from proprietary models should face consequences. "For my first post, I'm sharing a letter @NVIDIA signed on why open models matter," Huang wrote. "Open models strengthen safety and cybersecurity, accelerate innovation and diffusion, and enable sovereignty." Notably absent were OpenAI and Anthropic, two of the leading developers of proprietary frontier AI models.