GPT-4.5, OpenAI's big new model, represents a significant step forward for AI's industry leader. It could also be the end of an era. The big picture: 4.5 is "a giant, expensive model," as OpenAI CEO Sam Altman put it. The company has also described it as "our last non-chain-of-thought model," meaning — unlike the newer "reasoning" models — it doesn't take its time to respond or share its "thinking" process. Why it matters: The pure bigger-is-better approach to model pre-training now faces enormous costs, dwindling availability of good data and...
OpenAI's GPT-4.5 release underscores AI's next challenge
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Join Living Room Conversations, our civil dialogue partner, and America Indivisible for a nationwide conversation on April 13, Thomas Jefferson’s 276th birthday. "Reckoning with Jefferson: A Nationwide Conversation on Race, Religion, and the America We Want to Be" will be held via in-person and online video discussions. Sign up today!
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