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Expert takes · Jul 24, 2026

Wharton professor Ethan Mollick: for using AI to do "real work," there are practically only two options left — and the dividing line isn't the model, it's the scaffolding.

Expert takes · This week (published Jul 23)

From the Jul 24, 2026 daily brief

Mollick, a professor at Penn's Wharton School and the most widely read AI pragmatist among business audiences, gives a hands-on read for the back half of 2026: for real work, the practical choices are ChatGPT or Claude (from $20/month), and the difference lives in the agent execution environment and product scaffolding, not the models themselves. He sorts each company's products into two types: those that deliver results (the model works in a cloud virtual machine and hands back decks, analyses, and files for your review) and those that show their work (they take over your computer, and you watch them edit files and run commands). His verdict on Google is harsh: it "has fallen behind where it now counts: it has no leading frontier model and it has nothing close to Codex and Code" (Codex is OpenAI's process-visible agent); Chinese open-source models are "surprisingly capable" but take real expertise to use as agents (One Useful Thing, Jul 23). This supports our July 19 call that the valuable position in AI is moving away from the model itself: the model layer went multipolar, but usable agent products did not, and the dividing line has moved to the scaffolding layer. Caveat: this is one person's read; Mollick has early-access relationships with the labs, and he says himself the picture can change at any time.

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