AI21 joined @nvidia, @Microsoft , @a16z, and dozens of others in signing the Open Weights and American AI Leadership letter. We build agenti…

AI21 joined @nvidia, @Microsoft , @a16z, and dozens of others in signing the Open Weights and American AI Leadership letter. We build agentic systems and agent optimization products on top of models, open and closed alike. The competition between them is what keeps the field honest - on quality, on cost, on who gets access. Both kinds of models will exist, and both should. Closing off the open path would be a mistake the whole ecosystem pays for. For my first post, I’m sharing a letter @NVIDIA signed on why open models matter. AI will transform every industry, power every company, and be built by every country. Open models strengthen safety and cybersecurity, accelerate innovation and diffusion, and enable sovereignty. Th…

Source: AI21 Labs (X) | 2026-07-28