Check What Sets AI Max Experiments Apart from the Performance Planner
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Key Takeaway
Once AI Max is on, use experiments to compare real results and the Performance Planner to look at budget forecasts. Decide your conversion goal and test period first so the forecast does not read like a promise.
What does the new experiment tool compare?
Google's announcement describes a way to look at AI Max's impact across several Search campaigns in a single A/B experiment. Do not pick out the one number that stands out in one campaign. Group campaigns that share the same goal, and the overall impact becomes easier to read.
| Item | Experiments | Performance Planner |
|---|---|---|
| What it shows | A comparison of results from live campaigns | Expected performance for a budget change |
| When to use it | To check the effect of AI Max | To plan a budget |
| How to read it | Against the goal and period you set | A reference forecast, not a promise |
Can you apply the planner's results right away?
The planner is a planning tool for reviewing budget changes and expected performance. Even if the tool lets you apply a plan directly, that does not mean performance will turn out as forecast. Before you apply it, check the stock you can actually sell, your capacity to handle inquiries, and the spending limit you can really use.
What conditions should you record before an experiment?
Write down the conversion goal and period you will compare, along with your existing brand and location controls. Noting whether any other major changes happened during the experiment will also help you interpret the results. If the feature is not visible in your account yet, separate the gradual rollout described in the announcement from whether it is actually available in your account.
Source: Google announcement of AI Max testing and planning tools. Date checked: 2026-10-10.
Frequently Asked Questions
Are experiments and the planner the same tool?
No. Experiments compare results from live campaigns, while the planner is a planning tool for estimating budget and performance in advance.
Are the planner's forecasts guaranteed?
No. They are only forecasts and do not guarantee actual results.
Will every account see the tools right after the announcement?
Google said the rollout would be gradual. Check your own account screen to see whether you can use them.
Sources & Verification Date
All materials have been verified from official announcements and may have changed since verification.