Google integrates Meridian into GA360

Google said on May 20 that it is bringing Meridian, its open-source marketing mix model, into Google Analytics 360, extending model-based measurement inside its enterprise analytics product. In a blog post published during the company’s Marketing Live 2026 cycle, Google said Analytics 360 users will soon be able to combine first-party, cross-channel and metrics signals in one place, measure causal performance and run predictive scenarios. The move adds a formal media-mix-modeling layer to a product already used for reporting, attribution and advertising analysis. ### What exactly did Google add to Analytics 360? Google’s May 20 Analytics post said Meridian is being brought into Google Analytics 360 so marketers can “unify your insights,” “pinpoint what’s working,” and “forecast outcomes.” The company described Meridian as its open-source marketing mix model and said the integration will let users bring together first-party data, cross-channel data and metric signals inside Analytics 360. (blog.google) Google Analytics 360 is the premium enterprise tier of Google Analytics, according to Google’s help documentation. That product already includes higher limits and advanced features for large organizations, and the Meridian addition places media-mix-style modeling inside the same environment where advertisers review traffic, conversion and advertising data. (blog.google) ### Why is Google pairing this with its Marketing Live announcements? Google’s Marketing Live 2026 materials paired measurement updates with a broader set of AI advertising announcements across Search, YouTube and commerce tools. In its Marketing Live collection page, Google said it introduced a Gemini-built agent spanning Google Ads, Google Analytics, Merchant Center and Google Marketing Platform, alongside new AI-powered advertising products. (support.google.com) Marketing Brew reported that Google also announced new ad formats for AI Mode and broader Search experiences, plus agentic commerce tools, at Marketing Live. Separate coverage from Marketing Dive and Search Engine Journal said Google is testing conversational and AI-driven ad formats in AI Mode and Search. Those changes matter for measurement because they place more commercial activity inside AI-mediated search experiences rather than a simple click path from search result to website. (blog.google) ### How does this fit with Google’s existing measurement stack? Google has been moving its analytics products toward modeled measurement for years. Google’s Analytics help materials describe the newer Analytics architecture as built for the “future of measurement,” with cookieless measurement, behavioral modeling and predictive capabilities. Google’s support page for cross-channel budgeting also says the budgeting model in Analytics uses a Bayesian regression model inspired by Meridian. (marketingdive.com) That means Meridian’s arrival in Analytics 360 extends an existing modeling direction rather than introducing a wholly separate measurement philosophy. Google also introduced Meridian tools earlier this year, including Scenario Planner, which the company said was designed to put marketing mix model insights directly into marketers’ hands. (support.google.com) The Analytics 360 integration brings that type of model-based planning closer to the reporting systems advertisers already use. (support.google.com) ### What changes for marketers trying to attribute performance? Google’s own description emphasizes causal measurement and forecasting, not only click-based attribution. In the May 20 post, the company said Analytics 360 users will be able to measure what is driving business outcomes and use predictive scenarios to guide investment decisions. (blog.google) Marketing Brew’s report tied the Meridian integration to a larger push toward AI-assisted measurement as direct observability becomes harder. That framing aligns with Google’s parallel rollout of AI search ad formats and cross-product agents, which can reduce the importance of a single referrer string or last-click path in explaining performance. (blog.google) Google’s documentation for all-channels performance still relies on linked ad accounts, imported campaign data and key events. That suggests modeled measurement in Analytics 360 will sit alongside, rather than replace, channel reporting and attribution data already used by advertisers. ### What happens next in the rollout? Google said “soon” in its May 20 Analytics announcement and did not give a public launch date in the blog post for when Meridian features will be fully available inside Analytics 360. (marketingdive.com) The next public reference point is Google’s Marketing Live 2026 materials and related Analytics documentation, where product availability details and support pages typically appear as launches move from announcement to rollout. (support.google.com) (blog.google)