update banner

Author: tcaldwell-x

overview.mdx

@@ -9,7 +9,7 @@ keywords: ["X API", "Twitter API", "developer platform", "API documentation", "X
 
 import { Button } from '/snippets/button.mdx';
 
-<Card title="Pay-per-usage pricing: Now Available" icon="bolt" iconType="solid">
+<Card title="X Activity API: Now Generally Available" icon="bolt" iconType="solid">
   <div style={{
     position: 'relative',
     minHeight: '90px'
@@ -29,9 +29,9 @@ import { Button } from '/snippets/button.mdx';
       <img src="/logo/grok.svg" alt="Grok logo" style={{ width: '100%' }} />
     </div>
     <div style={{ position: 'relative', zIndex: 1 }}>
-      Pay only for what you use. Plus, <span style={{fontWeight: 500, color: 'rgba(255,255,255,0.75)'}}>earn free xAI API credits</span> when you purchase X API credits!
+      The X Activity API is officially out of beta. Subscribe to real-time activity events like profile updates, follows, and more with <span style={{fontWeight: 500, color: 'rgba(255,255,255,0.75)'}}>sub-second delivery</span> via streaming or webhooks.
       <br /><br />
-      <Button href="/x-api/getting-started/pricing">Learn more</Button>
+      <Button href="/x-api/activity/introduction">Learn more</Button>
     </div>
   </div>
 </Card>