Google Ads API v25.2: Competitor Benchmarking and Upgraded Performance Max

Have you ever sat staring at your advertising dashboard and wondered: "Am I actually doing a good job or just fooling myself?" You see your CTR increase and your CPA decrease, but deep down, a doubt remains: compared to your competitors, where do you really stand?

I understand that feeling. In my twenty years of marketing, I have witnessed countless advertisers fall into the trap of "vanity metrics" – where every indicator glows green while revenue remains completely flat. The underlying issue is simple: you cannot know how well you are performing if you have no one to compare yourself against.

Google has finally listened to that pain point. The newly released Google Ads API v25.2 brings a wave of features designed to transform how advertisers evaluate campaign performance. While not a revolution, it represents a crucial step forward – particularly for those working in agency environments where data and competitor insights are the ultimate keys to survival.

What's New in Google Ads API v25.2?

Released on September 23, 2026, Google Ads API v25.2 is a minor update packed with notable changes. Most importantly, there are no breaking changes, meaning your current integrations will not break when you upgrade.

This update focuses on three primary areas:

• Competitive benchmark data – featured directly within the API for the very first time.
• Asset group-level Performance Max controls – granting advertisers finer management options.
• Smart Campaigns to Performance Max migration – introducing an entirely new automated workflow.

Additionally, Google has added features for Content Creator Insights, improved hotel and travel reporting, and smarter recommendations for Search campaigns. Let us dissect each point, because behind every feature lies an opportunity to outperform your competitors.

Competitor Benchmarking: Eliminating Market Blind Spots

This is the feature I am most excited about, and easily the crown jewel of Google Ads API v25.2.

Previously, understanding how your account compared to competitors required exporting data, performing manual analysis, and often settling for unreliable conclusions due to missing market context. Now, the Google Benchmarks Service allows you to query percentile data directly – showing your advertiser standing relative to other competitors in the exact same segment.

You can now:

• Compare account performance against "all advertisers" benchmarks.
• Apply category filters to focus on a specific market segment rather than the entire industry.
• Integrate benchmark data straight into agency dashboards rather than running isolated analyses.

Imagine the power of this capability. When an agency reports campaign results to a client, instead of simply stating, "Our CPA is 50,000 VND," they can add: "Our CPA falls within the top 25% of the market – outperforming 75% of our competitors." That is the fundamental difference between reporting metrics and delivering value.

In a world where every agency can access the exact same dashboard, the ability to interpret data meaningfully becomes a true competitive advantage.

Performance Max: Greater Control, Less Ambiguity

Performance Max has long been Google's golden child – promoted as a universal solution for every campaign. Yet, it remains a frequent source of frustration for advertisers because increased automation often translates to reduced control.

Version 25.2 addresses part of that anxiety by introducing URL controls at the asset group level.

Specifically, advertisers can now set up tracking templates, custom URL parameters, and final URL suffixes directly within individual asset groups, rather than managing them strictly at the campaign level. This allows you to customize tracking information for different product groups or distinct customer segments without creating entirely separate campaigns.

That is not all. Google has also introduced a new method allowing users to create Performance Max drafts directly from Smart Campaigns via the API. The migration process from Smart Campaigns to Performance Max can now be fully automated, saving account managers countless hours every single week.

This signals a clear direction: Google wants to move all advertisers onto Performance Max – their highest-automation system – and they are doing so by reducing friction during the transition phase.

Content Creator Insights: Easier Creator Discovery

If your work involves influencer collaboration campaigns, this update brings welcome news.

Previously, the Content Creator Insights service only permitted creator searches via channel IDs – long, cumbersome strings of characters that nobody can memorize. You can now search directly using a YouTube handle – the friendly username everyone knows.

While this might sound minor, for teams working with dozens of creators weekly, saving a few minutes per search adds up to hours saved every month. It creates the difference between a smooth workflow and an experience bogged down by friction.

Travel Reporting: Granular Booking Date Details

For professionals operating within the hospitality and travel sectors, version 25.2 introduces valuable enhancements.

Google has added new dimensions for hotel reporting, including:

• Lead time – how many days in advance guests book their stays.
• Length of stay – how many nights guests book.
• Check-in date – the actual start date of the guest's trip.
• User-selected date indicator – distinguishing between dates actively chosen by the user versus default dates.

Equipped with these dimensions, advertisers can analyze booking behavior far more deeply: whether travelers book early or late, stay for short or long durations, and whether they actively search specific dates or simply browse the site.

You can also combine these new dimensions to compare pricing tiers, price segments, and potential impression volumes. This provides critical data needed to optimize campaigns according to seasonality and specific consumer segments.

Warnings for Low Target CPA and Target ROAS

Finally, for Search advertisers, Google has introduced a new category of recommendations that trigger warnings when Target CPA or Target ROAS thresholds are set too low, preventing campaigns from participating in auctions.

This serves as a helpful automated safeguard. Many advertisers set overly ambitious goals without realizing they are tying their own hands. When a Target CPA is set unrealistically low, the system fails to find matching auctions, and campaigns gradually become invisible.

This new recommendation alerts you to review your settings and make appropriate adjustments. It is a minor detail that can mean the difference between a stalled campaign and a profitable one.

Why Does This Update Matter to You?

You might be thinking: "I am not a developer, and I do not use the API directly. How do these changes affect me?"

The answer is: significantly.

Most of the ad management platforms you rely on – from agency reporting tools to automation platforms like Optmyzr or Revealbot – are built on top of the Google Ads API. When Google updates its API, these platforms quickly integrate the new capabilities.

This means that soon:

• Your dashboard will feature competitor benchmark data – letting you see where you stand relative to the broader market.
• Automation tools will gain expanded Performance Max controls – helping you optimize campaigns more effectively.
• Transitioning from Smart Campaigns to Performance Max will become seamless – if you still utilize Smart Campaigns.
• Travel reports will deliver deeper granularity – if you work within the hospitality industry.

Most importantly, these changes demonstrate Google's ongoing effort to expand programmatic capabilities for advertising features. The future of ad management is increasingly automated, and those who learn to leverage the API will hold a massive advantage.

Roadmap and Support: What Actions Should You Take Now?

If you are a developer or manage a platform integrated with the Google Ads API, here are the steps you should take:

1. Update Client Libraries and Source Code

To utilize the new features, you must update your client libraries to version 25.2. Google strongly encourages keeping integrations aligned with the latest API release.

2. Review the Support Lifecycle

Version 25.2 will be supported until August 2027 – nearly a year from its release date. Meanwhile, version 26 is anticipated to launch in October 2026. Plan your upgrade timeline to match your development cycle.

3. Begin Integrating Benchmarks Into Dashboards

This represents the highest-value feature in the release. If you run an agency, explore integrating benchmark data directly into client reports to establish a clear differentiator against competitors.

4. Audit Campaigns with Extremely Low Target CPA/ROAS Settings

If you receive new system warnings, re-evaluate your bidding goals. Sometimes, a minor adjustment opens the door to an array of profitable new auction opportunities.

When Data Becomes a Competitive Advantage

I have watched the digital advertising industry navigate numerous shifts over the past two decades. From the days of entirely manual execution, to the rise of automation, and onward to the age of AI, the winner has never been the party with the largest budget, but rather the one with the deepest market understanding.

Google Ads API v25.2 represents another major milestone in that journey. For the first time, you can evaluate your market standing against competitors – not through gut feeling, but via actual percentile data. You gain better control over Performance Max, smoother migrations from Smart Campaigns, and the ability to make decisions grounded in facts rather than guesswork.

This is not a revolution. It is a steady step forward – and within the online advertising world, steady progress often outweighs flashy revolutions.

What are your thoughts on Google providing direct competitor benchmark data inside the API? Is this a fantastic tool enabling smarter campaign optimization, or a double-edged sword since your competitors can view your exact data as well? If you run an agency, how do you plan to use this data to forge a competitive edge – and are you prepared to share these insights openly with your clients? Share your perspectives below, because in the game of advertising, those who refuse to adapt will forever remain followers!