US Large Models Moving Towards Closure, In the Name of Security
Summary: The U.S. government has intervened to regulate the release of advanced AI models, citing national security concerns. This analysis details the events surrounding the controlled rollout of Anthropic's Mythos 5 and Fable 5 models and OpenAI's restricted GPT-5.6 release, following a Trump administration executive order. It questions the technical basis for the government's actions, noting that internal company safety assessments did not deem the models an unacceptable risk. The article draws parallels to the 1990s "Crypto Wars," where similar attempts to control encryption technology ultimately failed, harming U.S. competitiveness. Experts warn that opaque, non-technical regulatory processes could stifle innovation, concentrate power, and undermine the economic logic of the AI industry, especially as Chinese models embrace open-source development. The piece concludes that this marks a potential turning point toward a pre-approval era for U.S. AI, creating uncertainty for developers and potentially slowing the broad societal diffusion essential for a technology's success.
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