Mollick Had to Rewrite His Own Model Guide Two Days After Publishing It: 'Keeping Up Is Challenging, Even if You Are Following This Stuff Closely'
X/Twittervia @emollick·low signal
Mollick posted that he had already updated the guide he wrote on Thursday to account for Opus 5 and Codex's voice mode, both of which launched Friday. The admission from someone whose full-time job is tracking this is the useful data point — the half-life of a model recommendation is now measured in days, not quarters. For builders, it argues against hardcoding model choice anywhere durable and in favor of a swap layer.