Write and format online ads with an agent
Anthropic marketer Austin Lau, who had never coded, used Claude Code to build ad-writing tools; Anthropic reports making an ad fell from 30 minutes to 30 seconds.
Done with Claude Code
What they did
Austin Lau, a growth marketer at Anthropic, had never written code. He used Claude Code to build two tools. One is an add-on for the design app Figma that makes ad image variations from pasted headlines. The other is a shortcut command that takes campaign data, existing text and keywords. It checks them against saved guides on brand voice, product facts and Google Ads best practice. It then saves 15 headlines and 4 descriptions per ad in a spreadsheet file ready to upload. He refines the text with Claude and reviews it before upload.
How it went
Anthropic reports that making an ad fell from 30 minutes to 30 seconds. The Figma add-on took 45 minutes to an hour to build. It saves him nearly 30 minutes each time he updates a large batch of ad images.
Worth knowing
Lau says the first draft often isn't right and needs back-and-forth to fix. The sample text given to Claude came from product marketing and copywriting teams, and the source is Anthropic's own blog.
Try it yourself with Claude Code
Help me build a reusable workflow for Google Ads responsive search ads. When I run it, ask me for campaign data, existing ad copy and target keywords for [product]. Use my brand voice guide [file] and performance data [CSV export] to see which messaging works. Draft 15 headlines and 4 descriptions per ad group and check each one against Google's character limits. Let me revise the drafts with you. When I approve, export a CSV with the campaign and ad group columns that is ready for upload. Do not upload anything to Google Ads yourself.
Swap the highlighted [parts] for your own details.
Source: Company blog (Anthropic) · Jan 26, 2026
Written with AI assistance from the original post and checked against our editorial guidelines. Results are as reported by the source, not independently verified.
