Google Demand Gen ad formats are a suite of visual media assets designed to reach potential customers across YouTube Shorts, Discover, and Gmail placements. Advertisers can utilize a mix of image ads, carousel ads, and short or long-form video assets to create a presence where users are most likely to engage with content. By combining these varied formats, you can tailor your visual strategy to fit the specific behavioral contexts of different Google-owned surfaces while maintaining a consistent brand message.
What are the core Google Demand Gen ad formats available today?
The system offers flexibility through three primary creative pillars: static images, carousel cards, and video files. Each serves a distinct purpose in the user journey. Image ads provide a punchy, singular visual statement that is ideal for quick brand recognition or a direct call to action. Carousel ads allow you to display multiple images or products in a single ad unit, which is particularly effective for showcasing a product catalog or telling a narrative in steps. Video assets, which can range from short clips suitable for YouTube Shorts to longer formats, allow for deeper storytelling and emotional connection with the viewer.
When configuring these in your account, the platform allows you to upload these assets into a single campaign structure. The machine learning models then determine which combination of image, carousel, or video performs best based on the user’s context and current browsing patterns. This approach means you do not need to manually choose every placement. Instead, you provide a high-quality set of assets, and the system matches them to the appropriate inventory across YouTube, Discover, and Gmail to maximize visibility.
How do these formats perform across different Google surfaces?
The strength of these formats lies in their adaptability to the unique environments of the Google ecosystem. On YouTube, particularly in Shorts, short-form video assets that capture attention within the first few seconds are often the standard for success. In the Discover feed, users are browsing for interests, so high-quality, lifestyle-oriented image ads tend to blend in while still standing out as a relevant suggestion. Within Gmail, the ad units appear in the social or promotions tabs, where a clean, concise image or a well-structured carousel can mimic the look of an email preview to drive clicks.
Because these formats are designed to be visually immersive, the technical specifications for each asset are critical. When you prepare your creative, ensure that your video files are optimized for both vertical and landscape orientations to cover the widest range of screen sizes. For images, maintaining high resolution without cluttering the visual space with too much text is a common pattern for accounts that see higher click-through rates. Following these baseline requirements helps the platform display your assets in the best possible light regardless of where the user is interacting with the ad.
Which format should you prioritize for specific campaign goals?
Choosing the right format depends on the specific intent of your campaign and the stage of the customer funnel you are targeting. If your primary objective is brand awareness or broad reach, video assets are generally the most effective tool due to their ability to convey complex value propositions quickly. For campaigns focused on product discovery or e-commerce, carousel ads are often a better choice. They allow the user to interact with the ad by swiping through products, which naturally leads to higher intent traffic reaching your landing page.
In a typical account, mixing all three formats provides the highest level of stability. By providing image, carousel, and video assets, you give the platform the maximum amount of creative options to test. This variety acts as a buffer against creative fatigue. If a specific audience segment is not engaging with your video content, the system can pivot to showing them a carousel instead. This diversification of assets ensures that your budget is spent on the most responsive format for each specific user, keeping your cost-per-acquisition within your target range.
What are the technical requirements for these creative assets?
- Image assets should be provided in multiple aspect ratios, such as 1.91:1, 1:1, and 4:5, to ensure they fit various ad slots.
- Carousel ads require a minimum of two cards, though using the maximum allowed number can provide more context for the user.
- Video assets can be uploaded in various lengths, but short-form vertical video is highly recommended for Shorts inventory.
- All assets must comply with standard platform policies regarding prohibited content and quality standards to ensure timely approval.
- Text overlays on images should be kept to a minimum to ensure the ad looks natural within the content feeds.
How Alien Road applies these ad formats in client projects
At Alien Road, our process for implementing Demand Gen campaigns begins with a deep analysis of the client’s existing visual library. We do not simply upload files; we categorize assets based on their psychological impact—whether they are meant to educate, inspire, or prompt a quick transaction. For a retail client, for example, we might start by creating a carousel that highlights a product collection, paired with a short, punchy video that demonstrates the product in action. We then monitor the performance in the Google Ads dashboard to see which assets generate the most meaningful engagement.
Once the initial assets have been running for a sufficient period, we review the asset report in the interface. We look for those marked as ‘Learning’ or ‘Low’ and replace them with variations that mirror the characteristics of the ‘Best’ performing assets. By systematically updating the image and video mix, we maintain a fresh creative presence. This iterative approach allows us to refine the delivery based on real-world engagement patterns, ensuring that the client’s budget is consistently directed toward the most effective visual communications.
Common mistakes to avoid when building your creative mix
- Using only one aspect ratio for images, which limits the number of placements where your ad can appear.
- Neglecting to include a clear, actionable CTA within the image or video, leaving the user unsure of the next step.
- Overloading creative assets with text, which can cause the ad to be flagged or ignored by users who prefer visual content.
- Failing to refresh assets regularly, which can lead to performance plateaus as the audience becomes accustomed to the same visuals.
- Mixing unrelated products in a single carousel, which confuses the user and lowers the overall click-through rate.
Where to start with your ad formats this week
To begin optimizing your strategy, log into your Google Ads account and navigate to your active Demand Gen campaigns. Check the asset report to see which specific image, carousel, or video components are currently driving your conversions. If you notice that you are only using one format, such as images, plan to introduce at least one video asset this week. Even a simple 15-second clip can provide a meaningful lift in engagement across the YouTube Shorts inventory.
After you add new assets, give the campaign at least seven to ten days to collect data before making further adjustments. This window is necessary for the system to understand how different users react to your new creative options. By keeping your creative rotation consistent and checking your asset metrics regularly, you ensure that your campaigns remain competitive. Start by auditing your existing library, selecting your strongest visual assets, and ensuring they meet the technical requirements for the Demand Gen format mix.
Keep reading: Google Advertising · Advertising