Quick answer: Google Ads has a built-in AI image generator for Performance Max and Demand Gen. Enter a text prompt or your landing page URL. Google AI returns multiple image options ready for your asset group. Get the specs right, review every image before publishing, and test multiple variations per aspect ratio.
---
Why AI-Generated Images Matter for Google Ads
AI image generation cuts creative production from days to minutes. You get more variations, more placements, and more tests without hiring a designer.
Google's policy on AI-generated creative
Per Google's Ads Help Center, AI-generated images are held to the same content standards as any other ad asset. They go through standard policy review. All images generated inside Google Ads include SynthID watermarks, imperceptible digital marks that flag the content as AI-generated.
Eligibility applies. You need an active account at least 30 days old, an English interface, and a good policy compliance history. Advertisers in sensitive verticals (politics, pharmaceuticals, gambling) are not eligible for the manual prompt tool.
Benefits: speed, scale, on-brand consistency
You can generate multiple images in one session. No stock photo subscription. No designer queue. Google AI can also analyze your landing page and suggest images that already match your product and offer.
---
How to Generate AI Images in Google Ads
The image editor lives in two places: inside campaign setup and in your Asset Library.
Using the built-in image editor in Performance Max
Open your Performance Max campaign and go to the asset group. Click "Generate images." Enter a text prompt describing your product or scene. Google AI returns several options. Pick the ones that fit.
You can also paste your landing page URL. Google AI analyzes the page and generates images tailored to your business automatically, per Google's documentation on building Performance Max asset groups with generative AI.
Using the built-in image editor in Demand Gen
The workflow is nearly identical in Demand Gen. Open the campaign, navigate to image assets, and select the AI generation option. Demand Gen supports up to 20 images per aspect ratio. Aim for at least 3 horizontal, 3 square, and 3 vertical images to meet Google's recommended minimums.
Writing effective prompts for best results
Be specific. Describe the subject, background, mood, and style. "A smiling woman holding a coffee cup in a bright modern kitchen" outperforms "coffee ad." Avoid vague or abstract descriptions. The more context you provide, the closer the output matches your brand.
Reviewing and selecting generated images
Always review before publishing. Google does not guarantee that AI-generated images pass policy review. Check for accuracy, brand fit, and compliance. Reject anything that misrepresents your product or includes restricted content.
---
Google Ads Image Specs for AI-Generated Content
Wrong dimensions mean your ad won't run. Get the specs right from the start.
Dimensions and aspect ratios
Per the Google Ads Help Center:
- Horizontal (1.91:1). Recommended 1200 x 628, minimum 600 x 314
- Square (1:1). Recommended 1200 x 1200, minimum 300 x 300
- Vertical (4:5). Recommended 960 x 1200, minimum 480 x 600
Performance Max requires at least 4 horizontal and 4 square images. Vertical images are optional but improve reach. Responsive Display Ads support up to 15 images per aspect ratio.
File size and format requirements
Images must be PNG or JPG. Maximum file size is 5120 KB. Compress files, but do not sacrifice sharpness.
Quality standards and safe area
Place important content in the center 80% of the image. Google crops images automatically for different placements. Anything near the edges may get cut. Avoid blurriness, distortion, and poor cropping.
---
Best Practices for AI Images in Google Ads
Good specs are not enough. The image itself has to earn the click.
Ensuring images match the landing page experience
Your image should reflect what is on the landing page. A mismatch hurts Quality Score and user trust. If your landing page shows a red sneaker, your image should show a red sneaker.
Avoiding common pitfalls
Google's best practices guide for responsive display ads warns against overlaid logos, text overlays, button graphics, collage images, and excessive blank space. Keep the product as the focal point. One clear subject. Clean background.
Testing multiple image variations
Upload 5 to 10 images per aspect ratio for Performance Max. More variations give Google's algorithm more to test. It allocates spend toward the top performers automatically.
When to use Google's native tool vs. external AI
Google's built-in tool is fast and fully integrated. Use it for quick asset generation inside a campaign setup flow. Use an external tool when you need more brand control, multi-platform output, or bulk creation across channels.
---
Creating On-Brand Images Across All Platforms
Google's native tool stays inside Google. If you run Meta campaigns too, you need a second workflow.
Using Coinis Image Ads to generate for Google + Meta + TikTok
Coinis Image Ads generates ad-ready creatives from a product URL or prompt. The output works for any channel. Download and upload to Google Ads, Meta, or wherever you run. Coinis does not yet publish directly to Google Ads, but Google and TikTok direct publishing are on the roadmap.
Maintaining brand consistency with Brand Profile
Brand Profile stores your brand's colors, tone, and visual style. Every image Coinis generates pulls from it automatically. You get consistent creatives across every platform without re-entering your brand brief each time.
---
Or let Coinis do it.
From a product URL to a live Meta campaign. AI-generated creatives. On-brand copy. Direct publish to Facebook and Instagram. Real performance reporting. All in one platform.
Start free. Upgrade when you're ready.
15 AI tokens a month. No credit card.
Frequently Asked Questions
Do I need special access to use AI image generation in Google Ads?
Yes. Your account must be active for at least 30 days, set to an English interface, and have a good policy compliance history. Advertisers in sensitive verticals like politics, pharmaceuticals, and gambling are not eligible for the manual prompt tool. Google is also rolling out access gradually, so some accounts may not see it yet.
Are AI-generated images automatically approved by Google Ads?
No. Google reviews all AI-generated images against its standard Ads Policy, just like any other asset. Approval is not guaranteed. Always review generated images for accuracy, brand fit, and compliance before publishing.
What file formats and sizes does Google Ads require for images?
Images must be PNG or JPG with a maximum file size of 5120 KB. Recommended dimensions are 1200 x 628 for horizontal, 1200 x 1200 for square, and 960 x 1200 for vertical. Place key content in the center 80% of the image to avoid cropping.
Can I use AI-generated Google Ads images on other platforms like Meta or TikTok?
Yes. Once you download an image from Google Ads, you can upload it to any other platform. For a faster multi-platform workflow, tools like Coinis Image Ads generate creatives from a product URL that work across Google, Meta, TikTok, and other channels from a single session.