Zuckerberg on Llama 4: "we were off the trajectory" — talent density over headcount
victor_explore · x · 2026-09-10
Meta CEO Mark Zuckerberg admits that around the Llama 4 launch "we were off the trajectory that we needed to be on," which pushed him toward talent density: not a thousand people running experiments, but close to the smallest team that can hold the whole system in their head.
The sharpest takeaway: the number of people who can hold your entire system in their head doesn't grow when you hire — which is why headcount is the wrong lever for a frontier model team.
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