Bosworth: Meta emptied its AI research pipeline to build Llama 3
Andrew Bosworth · Meta CTO Andrew Bosworth: Our Path To Frontier AI, Renting Models, Consumer AI's Struggles · Jul 8, 2026 · at 1:57
Meta CTO Andrew Bosworth explains why Meta lagged behind rival labs during the development gap between Llama 3 and Llama 4.
“When we were pulling Llama three together, we had really pulled in all the research, all the every, we pulled out every single stop we had and unwittingly kind of killed the pipeline. So researchers, you know, the way that it works is you build a base And you've got people pioneering an incremental version of the base, and you've got people out there pathfinding entirely new strategies. And kind of unbeknownst to us at the time, and kind of speaks to the fact that we weren't focused enough on it LAMA III, which was a great model and was well received, to get to that model, they had kind of pulled forward all the future bets into that, to deliver that model. Well, that meant when it came time for LAMA IV, we didn't have any of the pathfinding the other labs still had going. So that makes you, now you're behind on reasoning. Now you're behind on mixture of experts. Now you're behind on a bunch of these critical technologies that have been used to continue, continue the pace of progress.”
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