Ethan Mollick: open-closed model gap at widest in a while as agentic models pull ahead
emollick · x · 2026-09-28
Ethan Mollick argues the gap between open and closed models is now the largest it has been in a while. Fable/Astra-class closed models are agentic in a way pre-Fable models are not, and no open model has crossed that line yet — when one does, he says, it will be a jump.
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