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Google Ads Image Extensions Testing in Search (2026 Update)

Google is actively testing and expanding image assets in search campaigns throughout 2026. Learn what the tests reveal about CTR lifts, AI-powered creative tools in Asset Studio, and how to set up image extensions that actually serve.

Google Ads search results page showing image extension alongside text ad with AI creative tools overlay

Key Takeaways

  • When an image asset triggers, your ad appears with headlines, descriptions, URL, and image — occupying more SERP real estate…
  • The biggest 2026 development is Asset Studio’s Gemini Omni integration, announced at Google Marketing Live. Advertisers can…

Google Ads Image Extensions in Search Campaigns: What’s New in 2026

Google’s image assets in search campaigns deliver a 6% average CTR lift, and 2026 testing is expanding them into new placements including YouTube Search, adding AI-powered creative generation through Asset Studio with Gemini Omni, and introducing AI disclosure labels that every advertiser needs to understand.

The short version

Google Ads image assets let advertisers upload visuals that appear alongside text ads on the search results page. They’re not new — the beta launched in 2021 — but 2026 has brought three significant changes: Gemini Omni-powered AI image generation inside Asset Studio at Google Marketing Live, expanded delivery to YouTube Search via the Search Partner Network, and mandatory AI disclosure labels rolling out since July. Advertisers who treat image assets as optional are leaving CTR on the table in a format Google is actively investing in across multiple surfaces.

Key facts

  • Image assets deliver a 6% average CTR lift on search ads (Google internal data, April 2023)
  • Dynamic image assets now automatically extract visuals from landing pages — no manual upload needed
  • Gemini Omni in Asset Studio enables AI image generation directly in Google Ads
  • Image assets now serve on YouTube Search, extending reach beyond the SERP
  • AI disclosure labels are mandatory for AI-generated/edited creative since July 2026

How image assets work in search campaigns

When an image asset triggers, your ad appears with headlines, descriptions, URL, and image — occupying more SERP real estate than a standard text ad. Google decides when to show images based on ad rank, query context, and predicted performance.

Eligibility has specific rules. Your account must be at least 60 days old with a good policy compliance history and active search campaigns generating spend. Sensitive verticals — sexual content, gambling, certain health categories — are excluded. A critical detail: pinned headlines in positions 1–2 and descriptions in position 1 always appear, but Description position 2 may be truncated when an image shows. If you have legally required copy, pin it to Headline 1, Headline 2, or Description 1 — never Description 2.

Dynamic image assets, introduced in 2024, change the workflow. Instead of manually uploading images, you opt in and let Google scan your landing pages to automatically select relevant visuals. The system picks the image it predicts will perform best per auction, running alongside your static uploads. For resource-constrained accounts, this is the single lowest-effort path to image coverage.

What’s new: AI creative tools and labels

The biggest 2026 development is Asset Studio’s Gemini Omni integration, announced at Google Marketing Live. Advertisers can now generate AI images inside Google Ads using text prompts, with the system respecting brand guidelines when configured. Asset Studio’s one-click creative testing, also launched at GML, automates A/B testing of image variants — rotating them, measuring CTR at the asset level, and surfacing winners without manual campaign restructuring.

The trade-off is compliance. Google now requires AI disclosure labels on ads containing AI-generated or edited creative. This applies whether you generate images in Asset Studio or upload from external tools like Midjourney. The label appears as a badge on the ad, and Google’s automated review systems check for AI content based on metadata and visual patterns. Failure to comply results in ad disapprovals.

Image assets must also meet format requirements: square (1:1, 1200×1200 px minimum) and landscape (1.91:1, 1200×628 px minimum), with no text covering more than 20% of the image. Google recommends at least 4 unique images per campaign across both formats to maximize serving eligibility.

What this means for advertisers

The underappreciated story isn’t the 6% CTR lift — that number has been public since 2023. It’s that image assets are transitioning from optional enhancement to core ad format. Google is investing in image delivery across SERP, YouTube Search, and likely AI Mode placements as those ad formats mature.

Advertisers who don’t use image assets will lose impression share to competitors who do. Google’s auction favors higher-CTR formats, and if your competitor’s image-augmented ad consistently outperforms your text-only ad, their impression share grows — even if your bid is higher. In competitive industries where every point of CTR affects Quality Score, this compounds quickly.

The dynamic asset feature also changes the maintenance calculation. Previously, image assets required ongoing creative work. Now, enabling dynamic assets takes one setting change, and Google handles image selection. The control trade-off is real — Google may pick images you wouldn’t choose — but for accounts managing dozens of campaigns, the coverage benefit outweighs the control gap.

What to do now

  1. Audit image asset coverage. In Google Ads, go to Assets → Asset reporting and filter by image type. Identify zero-coverage campaigns and prioritize your highest-spend search campaigns first.

  2. Upload 4+ images in both formats per campaign. Square (1:1) and landscape (1.91:1) images increase the likelihood of serving. Avoid heavy text overlays — Google’s 20% text rule is enforced.

  3. Enable dynamic image assets as a safety net. Even with static uploads, opt into dynamic assets in campaign settings. This ensures image coverage when none of your uploaded images match the auction.

  4. Pin legally required copy correctly. Pin disclaimers to Headline 1, Headline 2, or Description 1. Description 2 may be truncated when an image displays, and missing required disclosures trigger disapprovals.

  5. Test AI-generated images through Asset Studio. Generate 3–5 variants, upload alongside existing images, and measure asset-level CTR after 2 weeks. The one-click creative testing feature can automate the comparison.

For more on how image assets fit into a broader ad format strategy, see our complete Google Ads extensions guide and our responsive search ads best practices.

FAQ

Do image extensions actually improve Google Ads performance?

Yes. Google’s internal data from April 2023 shows a 6% increase in click-through rate on average when image assets appear alongside search ads. The visual component helps ads stand out in an increasingly crowded SERP, and the expansion to YouTube Search via the Search Partner Network has extended that reach further.

Why aren’t my image extensions showing in search campaigns?

Image assets don’t always serve — Google decides based on ad rank, query context, and predicted performance. Common reasons: account under 60 days old, ineligible vertical, pinned text in Description position 2 (truncated when image shows), or fewer than 4 unique images in both square and landscape formats.

Can I use AI-generated images for Google Ads image extensions?

Yes, but with new labeling requirements. Google’s Asset Studio now integrates Gemini Omni for AI image generation, but AI disclosure labels became mandatory in July 2026. Images must meet format requirements: no text covering more than 20% of the image, no blurry visuals, and clear product representation.

What’s the difference between static and dynamic image assets?

Static image assets are manually uploaded images you control. Dynamic image assets, introduced in 2024, let Google automatically pull relevant visuals from your landing page. Both can run simultaneously — Google recommends opting into dynamic assets even alongside static uploads to maximize serving coverage.

Sources

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ROA Marketing Team

ROA Marketing publishes deep, practical playbooks on PPC, SEO, and AI-driven marketing. We test everything we write about on live campaigns.

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