This is the first impression I got, a glass ceiling on AI that will hit the market hard. Timing was right at the late Friday's let's-avoid-the-crash point, we'll see how this flies on Monday.

But it's also, as sibling comments mentioned, a bend-the-knee between Government and Anthropic. Once OpenAI catches up, and Anthropic lawyers-up as well, it will probably be reversed or morphed into a "models must have the US seal of AI-approval and, therefore and hereafter, we AI-approve the new US-verified Fable 5.1" - which will coincide with a at-large deployment at the DoD, Pentagon, and friends.

Otherwise the Chinese will catch-up and, heavens forbid!