diff --git a/README.md b/README.md
index 88a7092..c144224 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Flint: A Visualization Language for the AI Era
+# Flint: A Semantic Visualization Language for AI Agents and Humans
 
 [![npm: flint-chart](https://img.shields.io/npm/v/flint-chart.svg?label=npm%3A%20flint-chart)](https://www.npmjs.com/package/flint-chart)
 [![npm: flint-chart-mcp](https://img.shields.io/npm/v/flint-chart-mcp.svg?label=npm%3A%20flint-chart-mcp)](https://www.npmjs.com/package/flint-chart-mcp)
diff --git a/site/index.html b/site/index.html
index e490cfd..16a0ccc 100644
--- a/site/index.html
+++ b/site/index.html
@@ -3,7 +3,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Flint: A Visualization Library for AI Agents and Humans</title>
+    <title>Flint: A Semantic Visualization Language for AI Agents and Humans</title>
     <link rel="icon" href="data:," />
     <style>
       html, body, #root { margin: 0; padding: 0; height: 100%; }
diff --git a/site/src/routes/Landing.tsx b/site/src/routes/Landing.tsx
index 4ff454f..5fc60ba 100644
--- a/site/src/routes/Landing.tsx
+++ b/site/src/routes/Landing.tsx
@@ -32,7 +32,7 @@ export function Landing() {
       <main style={mainStyle}>
         {/* ---- Hero ------------------------------------------------------ */}
         <section style={{ ...sectionStyle, paddingTop: 88, paddingBottom: 36 }}>
-          <h1 style={heroTitleStyle}>Flint: A Visualization Language for the AI Era</h1>
+          <h1 style={heroTitleStyle}>Flint: A Semantic Visualization Language for AI Agents and Humans</h1>
           <div style={heroAttributionStyle}>A Microsoft Research project</div>
 
           <div className="landing-lead-columns" style={leadColumnsStyle}>
