What is an AI Google Ads copy generator?
An AI Google Ads copy generator writes the text assets for a responsive search ad. You enter the product or service, the target keywords and what makes you different. A language model returns 15 headlines of up to 30 characters, 4 descriptions of up to 90 characters, 4 sitelink ideas and 4 callouts, with keywords worked in naturally and calls to action included.
Those numbers match what Google Ads accepts. A responsive search ad takes up to 15 headlines and 4 descriptions, and Google mixes them to find the combinations that perform, showing up to three headlines and two descriptions at a time. Filling every slot with distinct messages gives the system more to test, which is why a full set of 15 is worth the effort. Writing 15 different 30-character lines by hand is the tedious part this tool takes on.
The generator is told not to invent prices, awards or statistics, because unsupported claims can get ads disapproved and mislead buyers. Give it the real selling points and it builds from those. It cannot see your account, your quality score or competitor ads, and it has no live data on what converts, so treat the output as a first set of assets to test.
Check the lengths before you paste. A 1B model miscounts characters and can go over the 30 or 90 character limit, and Google Ads will reject any asset that does, so run anything close through a character counter. Sitelink text and callouts have their own short limits in Google Ads, so trim those ideas to fit.
The model runs on the Toolz server. Your brief is sent over HTTPS, the server builds the prompt and runs Gemma 3 1B, a small open model from Google, with Ollama, and the assets stream back as they are written. Client briefs are used to write the reply and then discarded: they are not stored or logged, not used to train any model, and not sent to any third-party AI company, Google included. It is free with no signup, within about 20 runs per 10 minutes, compared with an agency or a paid ad tool. Send the traffic to a page drafted with the AI Landing Page Copy Generator.
How to write Google Ads copy with AI
Enter the product
Name the product or service being advertised, such as "Emergency plumber in Leeds".
Add keywords and your edge
List target keywords separated by commas, and describe what makes you different in a sentence or two.
Press Write ads
Headlines, descriptions, sitelinks and callouts stream in as they are written, usually within 10 to 30 seconds.
Check lengths and copy
Confirm each headline is 30 characters or fewer and each description 90 or fewer, press Redo for more, then copy or download.
What the Google Ads copy generator does
A full RSA set
15 headlines and 4 descriptions, the maximum a responsive search ad accepts, in one run.
Character limits in the prompt
Headlines are asked for at 30 characters or fewer and descriptions at 90 or fewer.
Sitelinks and callouts
Four sitelink ideas and four callouts to fill out the ad's assets.
No invented claims
The model is told not to make up prices, awards or statistics that could get an ad disapproved.
Frequently Asked Questions
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