Sign of the future: GPT-5.5

Ethan Mollick on GPT-5.5: each release pushes the jagged frontier of AI capability further out, but the frontier is still jagged. He demonstrates the model's range — sophisticated simulation code from a single prompt, an academic paper drafted from raw research data, an illustrated tabletop game complete with playtesting — while flagging where it still falls down (long-form fiction, certain analytical tasks). The keeper line: "The jagged frontier is still there. It is just much further out than it used to be."

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