Google Ads API v24.2: AI Transparency Labels Reshape AI Video Ads in 2026

What Is Google Ads API v24.2’s AI Transparency Update?

Google Ads API v24.2, released on June 25, 2026, introduces mandatory synthetic content labels for AI-generated ad creatives, enabling advertisers to programmatically disclose AI involvement in assets. This update directly addresses upcoming regulatory requirements like the EU AI Act and rising use of AI in Performance Max campaigns. The new SyntheticContentInfo and SyntheticContentAttestation fields on Asset and Ad resources let systems label content as fully automatic or advertiser-reviewed, giving brands a standardized way to signal AI-generated video, image, or copy assets. Google’s developer blog details the technical implementation, while industry coverage on Search Engine Land explains the practical impact for advertisers preparing for transparency mandates.

How Will AI Transparency Labels Affect AI Video Generation for Brands?

For brands using AI video generation tools to create Google Ads creatives, the new labels mean every AI-generated asset must carry an attestation. The API v24.2 update provides two options: AUTOMATIC (fully AI-generated without human review) and ADVERTISER_REVIEWED (AI-generated but approved by a human). This distinction helps advertisers maintain compliance while still leveraging AI for rapid video production. A detailed guide on Kingy.ai walks through how to implement these fields in your workflow, ensuring that AI-generated product videos, brand videos, or social ads are properly tagged from the start.

What Is AI Brief and How Does It Give Brands Control Over AI Ad Creative?

Alongside the API update, Google launched AI Brief, a new feature inside Google Ads that lets marketers set natural language brand guidelines for AI-generated ad creatives. Announced on Think with Google, AI Brief allows advertisers to see live previews of proposed ad copy and audiences, ensuring AI-generated content stays on-brand while leveraging Google’s models to interpret complex search queries. For video, this means brands can specify tone, style, and key messaging, reducing the risk of off-brand AI output when generating video ads at scale.

How Are Demand Gen Campaigns Improving for Video Advertising?

Google’s June 2026 Demand Gen drop, detailed on the Google Ads & Commerce Blog, introduces upgraded video resizing options and creative insights powered by Gemini. Advertisers can now optimize video assets for YouTube and other surfaces with AI-driven recommendations for aspect ratios, duration, and visual elements. This directly benefits brands using AI video generation, as the system can automatically resize and refine video creatives to match high-performing formats. Additionally, new web-to-app acquisition measurement helps attribute conversions from video ads more accurately.

Why Is Google Ending Smart Campaign Creation in the API?

Google announced that the Ads API will stop supporting new Smart Campaign creation on August 3, 2026, as reported by Search Engine Land. This deprecation signals a definitive shift toward AI-powered campaign types like Performance Max. For brands that rely on automated video campaigns, migration to Performance Max is now essential. The new campaign type supports AI-driven video creative optimization, asset generation, and the transparency labeling introduced in v24.2, making it the natural successor for AI-focused advertisers.

What New YouTube Insights Tools Help Brands Optimize AI Video Ads?

At Cannes Lions 2026, Google unveiled YouTube insights tools built with Gemini, as covered on the Google Blog. These tools provide deeper trend data in the Google Ads Insights Finder and an Insights API for partners. Brands can now analyze creator marketing performance, identify trending topics, and receive creative tips tailored to their video campaigns. For AI video generation, this means the system can ingest real-time trend signals to produce more relevant ad content, improving engagement and conversion.

Key Features at a Glance

Feature	Description	Impact on AI Video Generation
API v24.2 AI Transparency	Mandatory SyntheticContentInfo labels for all AI-generated assets	Ensures legal compliance and builds trust; must be implemented in video generation pipelines
AI Brief	Natural-language brand controls for AI ad creative	Allows brands to define video style, tone, and messaging guidelines before generation
Demand Gen Video Upgrades	Gemini-powered resizing, insights, and creative optimization	Automatically adapts AI-generated videos for multiple formats and surfaces
Smart Campaign Deprecation	API stops creating new Smart Campaigns after August 3, 2026	Pushes migration to Performance Max, which supports advanced AI video features
YouTube Insights Tools	Gemini-based trend analysis and creative tips	Informs AI video generation with current audience interests and performance data

How Should Brands Prepare for the AI Transparency Mandates?

With the EU AI Act and similar regulations approaching, brands that use AI video generation must update their ad creation workflows. The first step is to integrate the new API fields into your video generation platform. Ensure that any tool you use—whether in-house or third-party—outputs assets with the correct SyntheticContentAttestation value. Next, leverage AI Brief to set brand guardrails, preventing off-message output. Finally, migrate any existing Smart Campaigns to Performance Max to continue benefiting from AI-driven automation and transparency features.

Conclusion

June 2026 marks a turning point for AI in Google Ads. The API v24.2 transparency labels, AI Brief, Demand Gen enhancements, and Smart Campaign deprecation collectively reshape how brands create and manage AI-generated video ads. By adopting these updates early, advertisers can stay compliant, maintain brand safety, and harness the full power of AI video generation for better campaign performance.