
Stack Overflow Blog
June 30, 20261 min read
Ryan sits down with Frank Portman, CTO at Yobi, to talk about why next-token prediction, though great for language, isnβt the right inductive bias for forecasting human behavior. They discuss how Yobi builds a βfoundation model of behaviorβ using transformers and graph neural networks instead of chat-style LLMs, and what it takes to run millions of personalization decisions per second while keeping consumer data private.βββββ β ββββββ β βββββββββ ββββββ ββββββ βββββββ β ββββββ ββββββ βββ ββββ βββββββ ββββββ ββββββββββ βββββββββββββββ βββββββββββ βββ βββ βββ β β ββββ ββ βββ ββ ββ β ββ ββ β β βββββββββ βββ ββ β βββββββ ββββββββ βββ β β ββ ββββ ββ ββ ββββββ ββ ββββββββ ββ ββββ βββββββββββββ ββββ ββ βββ βββββββββ ββ βββ βββββββ β ββββββ ββ βββββββ ββββββββ ββ ββ β βββββββββ ββ βββ βββββββ βββ βββ βββ βββββ ββ ββ βββββββ βββ ββββ ββ βββββββ βββ ββββ ββ βββββββββββββ ββ ββ βββ βββ βββ βββββββ βββ βββ βββββββββββ β β β β β β βββ βββ βββββββ βββββββ βββ βββ ββββββ β β β βββ β β βββββββ βββββββ ββββββ βββββ βββββ βββ βββ βββ βββββββββ β βββββββββ ββββ ββ ββββββ βββ βββ βββ β βββββ β βββββββββ βββββββββββ βββββββββ ββ ββ β ββ ββ β β βββββββββ βββ ββ β βββββββ ββββββββ βββ β β ββ ββββ ββ βββββββββββββ ββ βββ βββββββ βββ βββ βββ βββββ ββ ββ βββββββ βββ ββββ ββ βββββββ βββ ββββ ββ βββββββββββββ ββ ββ βββ βββ βββ βββββββ βββ βββ βββββββββββ β β β βββββ βββ βββ βββββββ βββββββ βββ βββ ββββββ β β β βββββββ βββββββ βββββββ ββββββ βββββ βββββ βββ βββ βββββββ βββββββ βββ β β βββββββββ β βββββββ βββββββ ββ βββ ββββββββ ββββββ β βββββββββββββββββ β
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