@FinanceYF5: Meta CTO confirms that over the past year, Zuck has had to enter 'founder mode'. He also greatly appreciates Alexandr Wang joining the team last year. To build the latest model, Meta made an emergency pivot: pulling thousands of employees from their original roles to generate expe…
Summary
Meta CTO confirms that Zuckerberg entered 'founder mode' last year, and appreciates Alexandr Wang's joining. To build the latest model, Meta urgently mobilized thousands of employees to generate human-guided expert traces for post-training, highlighting the reliance of cutting-edge models on high-quality validated data.
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Cached at: 07/14/26, 08:19 AM
Meta CTO confirms that over the past year, Zuck has had to enter “founder mode.”
He also highly appreciates Alexandr Wang joining the team last year.
To build the latest model, Meta made an urgent pivot: pulling thousands of employees from their original roles to generate expert traces.
These expert traces are manually guided code examples used for post-training the model.
This also confirms one thing: the bottleneck for frontier models is not just raw compute, but high-quality, human-verified reinforcement learning data.
Worth a listen.
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