DAILY SITUATION RECAP: - Claude Fable 5.1 - SB Energy files for IPO - Physical Superintelligence makes a splash with a $58M seed round - Senator Bernie Sanders calls for an AI pause in Fox News op-ed Anthropic releases Fable 5.1 & Mythos 5.1. Anthropic released its latest frontier model with two versions: Fable 5.1 is generally available, while Mythos 5.1 gives vetted cybersecurity and life-sciences researchers access to more advanced capabilities. Anthropic says Fable 5.1 improves on Fable 5…