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Index › Marketing › Attribution & MMM › Google Analytics 4 vs Google Meridian
Attribution and marketing mix modeling · October 2026 Edition

Google Analytics 4 vs Google Meridian

Zero of fourteen models named Google Analytics 4 first on the direct prompt; zero named Google Meridian. Google Analytics 4 was named by fourteen of the fourteen models and Google Meridian by thirteen and Google Analytics 4 carries 28 labels and Google Meridian 34, so the shares are not directly comparable.

Google Analytics 4

criticized challenger

By Google, Mountain View, California, United States, founded 1998. Named in seventeen categories this edition.

Google Meridian

accepted challenger

By Google, Mountain View, California, United States, founded 1998. Named in one category this edition.

First-choice share17%5%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate25%12%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#2#4A position in a field of 17; printed, not drawn.
Labels2834A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Google Analytics 4 reading right to left. Rank and label count are printed, not drawn.Dreamdata was named alongside these two in fourteen of the fourteen direct answers. Dreamdata vs Google Analytics 4 · Dreamdata vs Google Meridian · Google Analytics 4 vs Rockerbox

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the attribution and marketing mix modeling page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
Google Analytics 4First choices, of fourteen modelsGoogle Meridian
Direct001 against Google Analytics 4 · 1 against Google Meridian
Paraphrase00
Comparative21
Budget-constrained1131 against Google Meridian
Scale-constrained001 against Google Meridian
Negative016 against Google Analytics 4 · 1 against Google Meridian
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where Google Analytics 4 and Google Meridian stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.20
Mistral Small
DeepSeek V4 Flash
Llama 4 Maverick
Qwen 3.7 Flash
Kimi K2
GLM 4.7 FlashX
MiniMax M2.5
GPT-6 Luna
Muse Glimmer 30B
Google Analytics 4 Google Meridian first choice named as an alternative argued againstblank: not namedEach cell is one answer, Google Analytics 4 on the left and Google Meridian on the right.

The direct prompt

The plain question, one answer per model, grouped by where Google Analytics 4 and Google Meridian stood in it.

Neither was named

14 of 14 modelsThe answer made no first choice from these two in this category.
Claude Haiku 4.5Dreamdata, HockeyStack alternatives: CaliberMind, HubSpot Marketing Hub, Rockerbox, SegmentStream
GPT-5.4 miniDreamdata alternatives: HockeyStack, Measured
Gemini 3.5 FlashCaliberMind alternatives: Dreamdata, HockeyStack, RevSure, SegmentStream
Perplexity SonarDreamdata alternatives: HockeyStack, Improvado, SegmentStream
Grok 4.20Dreamdata alternatives: Factors.ai, HockeyStack, Rockerbox
Mistral SmallDreamdata, MixModeler alternatives: Northbeam
DeepSeek V4 FlashDreamdata, Rockerbox alternatives: HockeyStack, Marketing Evolution, Measured
Llama 4 MaverickRockerbox alternatives: Attribution, Dreamdata, Northbeam
Qwen 3.7 FlashRockerbox alternatives: Dreamdata
Kimi K2Dreamdata alternatives: Factors.ai, Recast, Rockerbox
GLM 4.7 FlashXDreamdata alternatives: Cometly, HubSpot Marketing Hub, Keen Decision Systems, Rockerbox, Ruler Analytics
MiniMax M2.5HockeyStack, Marketing Evolution alternatives: Adobe Marketo Measure, Dreamdata
GPT-6 LunaHockeyStack alternatives: Dreamdata, Paramark
Muse Glimmer 30BDreamdata alternatives: Admetrics, Adobe Marketo Measure, HockeyStack, Rockerbox

Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Google Analytics 4 leads by fifteen points.
Google Analytics 418%#2 of 17
Google Meridian3%#8 of 17
The full small business standing →
Mid-marketThe figures above
Google Analytics 4 leads by twelve points.
Google Analytics 417%#2 of 17
Google Meridian5%#4 of 17
The full mid-market standing →
Enterprise
The order flips: Google Meridian leads at enterprise.
Google Meridian2%#15 of 17
Google Analytics 40%#– of 17
The full enterprise standing →

What the models said about Google Analytics 4

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Two of two in this category shown.

“Free leader for basic-to-advanced data-driven attribution; integrates seamlessly with Google Ads. Great for SMBs, but privacy-limited post-cookies.” Grok 4.20 · comparative prompt · first choice
“Google Analytics 4 (GA4) is completely free and provides a solid foundation without any financial commitment for teams with limited budgets” Claude Haiku 4.5 · budget prompt · first choice

What the models said about Google Meridian

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.

“Free, open-source libraries like Google Meridian or Meta Robyn require dedicated data scientists... a SaaS platform with a managed service component is almost always the right choice” Gemini 3.5 Flash · scale prompt · soft negative
“Mid-market companies rarely have full-time data scientists to manage open-source MMM code (like Google Meridian or Meta Robyn)” Gemini 3.5 Flash · direct prompt · soft negative
“Google Meridian if you lack data or modeling support. Meridian is open source, not a turnkey measurement service.” GPT-6 Luna · negative prompt · soft negative
“open-source MMM tools like Meta's Robyn or Google's Meridian are increasingly attractive due to their transparency and cost-effectiveness” Mistral Small · negative prompt · first choice
“Open-source Bayesian MMM, native Google Ads integration... Successor to LightweightMMM; free, transparent code” GLM 4.7 FlashX · comparative prompt · first choice
“Google's Meridian is a Bayesian MMM framework released openly for anyone to use—no licensing fees.” Grok 4.20 · budget prompt · first choice
Also compared

Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.