AI BEAVERS

the dam brief #4

happy friday, beavers. this week: Microsoft moves Mustafa Suleyman to lead its own frontier model effort in a direct hedge on its $13B OpenAI bet, Mistral ships a single Apache 2.0 model that unifies reasoning, vision, and coding, and ARPA-H commits $144M to the largest-ever randomized trial testing existing drugs against biological aging.