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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Cursor, Migrating — Clay Nelson</title>
<meta name="description" content="A worked example of an exposure vector in motion: how Cursor walked from pure model-reseller to vertically integrated harness platform, and what it did to gross margin.">
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<div class="container">
<a href="/" class="back">← Clay Nelson</a>
<h1>Cursor, migrating</h1>
<p class="byline">A worked example for the allocator: an exposure vector is not a fixed attribute. It is the visible residue of strategy. June 2026.</p>
<p>The <a href="/portfolio-allocator.html">allocator</a> assigns each name an exposure vector across the five layers. The obvious objection is that those vectors are static guesses. Cursor is the counter-argument. Over eighteen months it walked deliberately across the chain — and the walk is legible in the one number that can’t be spun, gross margin.</p>
<p>It began as the canonical thing the squeezed middle was supposed to commoditize: a VS Code fork reselling other people’s models by the token. The economics proved the thesis against it — inference ran an estimated forty to seventy cents on every revenue dollar, so gross margin sat structurally below normal software. A harness-layer company bleeding surplus upward to the frontier labs whose tokens it resold.</p>
<p>Then it did what the value-tip layers do to defend themselves: it integrated vertically to stop the bleed. Composer, shipped in late 2025, was built on an open base model — so Cursor didn’t climb into the frontier tier, it climbed into the <em>good-enough small-model</em> tier, which is the SLM-threshold lever expressed as corporate strategy. Routing its own model for fast edits, frontier models for hard reasoning, and a cheap third model for long-context work, it decoupled revenue from the API bill and the margin inflected positive on enterprise.</p>
<h2>The vector in motion</h2>
<p>Scrub the timeline. The exposure vector and the gross-margin consequence move together, because the vertical integration that fixed the economics <em>is</em> the maneuver across layers.</p>
<div class="tool-wrap">
<div class="tl-row"><span>Timeline</span><input type="range" min="0" max="3" value="0" step="1" id="sStage"><b id="vStage">early 2025</b></div>
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<div class="metric"><p class="metric-label">ARR run-rate</p><p class="metric-value" id="mArr">—</p><p class="metric-sub">annualized</p></div>
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<p class="section-label">Exposure across layers</p>
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<h2>The tip it does not hold</h2>
<p>Across every stage, the verification sleeve barely moves above five percent. Cursor climbed hard into the harness tip and stopped the upward bleed, but it never built into the deflation-immune verification tip — because the product optimizes for velocity, and audit-grade evidence is a different muscle. In a regulated-industry frame, that absent sliver is the whole system-of-record argument rendered as a structural fact: two companies contest the harness layer, but only one is positioned for the compliance tip, and the model shows that as geometry rather than assertion.</p>
<p>That is the lesson the allocator needed. Exposure vectors are not guesses pinned to a name forever. They are claims about a moment, and companies actively maneuver across the chain — the maneuvering shows up in the financials before it shows up in the narrative.</p>
<div class="caveat">
<strong>Ownership is unresolved.</strong> As of writing, a SpaceX/xAI acquisition of Anysphere at roughly sixty billion is reported but pending close and regulatory approval, on mostly secondary sourcing. If it lands, Cursor stops being an independent exposure and becomes a line inside a complex that also owns a frontier model — the frontier weight jumps and the standalone vector above no longer applies. Treat this page as Cursor as it operates today, with the ownership question flagged rather than priced.
</div>
<p style="margin-bottom:0">← <a href="/portfolio-allocator.html">Back to the allocator</a> · <a href="/">index</a></p>
<footer><p>Personal research. Views my own. June 2026.</p></footer>
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