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Every AI headline reports the model that did the work. Wrong unit of analysis. GPT-5.2 didn't build a browser; Cursor's planner-worker-judge harness built one using GPT-5.2 as substrate. Value accrues to whoever owns the orchestration layer, not to whoever trained the weights.
Cursor's own engineering lead says the IDE that built the company "is not as important going forward anymore" — which is a clean admission that the product is pivoting before the market forces it to. Cursor 3 bets on orchestration stickiness: a sidebar that dispatches parallel cloud and local agents, a proprietary model (Composer 2, built on Moonshot AI) to reduce upstream dependency, and 60% of $2B ARR already locked in enterprise. The vulnerability is that Claude Code and Codex are collapsing the workspace into the terminal, and no one has demonstrated that orchestration UI produces a defensible moat before model commoditization arrives.
