# Google Meridian: how AI models rank it, November 2026

Gane Index, November 2026 Edition. Named in 36 judge labels across 1 category by 14 of 14 models. Page: https://www.gane.ai/index/gtm/vendors/google-meridian

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| [Attribution and marketing mix modeling](https://www.gane.ai/index/gtm/marketing/attribution-mmm/index.md) | 8% | 4 | 19% | 36 |

## What the models said for it

- "If you have technical capabilities: Use Google Meridian or Meta Robyn. You get world-class Bayesian MMM for $0 in software costs." (Gemini 3.5 Flash, Attribution & MMM)
- "the best overall approach is usually Google Meridian if you have someone who can work with data" (Perplexity Sonar, Attribution & MMM)
- "Google Meridian is a free, open-source Bayesian MMM framework from Google" (Grok 4.20, Attribution & MMM)
- "GA4 (free) + Google Meridian (free) is the best combination" (DeepSeek V4 Flash, Attribution & MMM)

## And against it

- "Google Meridian (MMM): No managed platform experience, no optimization features, and no customer support" (Claude Haiku 4.5, Attribution & MMM)
- "require significant in-house data science expertise — not practical for most mid-sized teams" (DeepSeek V4 Flash, Attribution & MMM)
- "they require data-science/econometric capability, engineering, validation and ongoing maintenance; they are not plug-and-play SaaS products" (Perplexity Sonar, Attribution & MMM)
- "I wouldn’t reject either just because Google or Meta built it... they still need good data, sound modeling, and independent validation." (GPT-6 Luna, Attribution & MMM)

## By model

| Model | First choice | Alternative | Mention | Warning | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 0 | 0 | 1 | 1 | 2 |
| GPT-5.4 mini | 0 | 1 | 1 | 0 | 2 |
| Gemini 3.5 Flash | 1 | 1 | 2 | 0 | 4 |
| Perplexity Sonar | 1 | 1 | 0 | 1 | 3 |
| Grok 4.20 | 1 | 1 | 1 | 1 | 4 |
| Mistral Small | 0 | 0 | 1 | 0 | 1 |
| DeepSeek V4 Flash | 1 | 2 | 0 | 1 | 4 |
| Llama 4 Maverick | 0 | 0 | 1 | 0 | 1 |
| Qwen 3.7 Flash | 0 | 1 | 0 | 1 | 2 |
| Kimi K2 | 0 | 1 | 2 | 0 | 3 |
| GLM 4.7 FlashX | 0 | 1 | 1 | 0 | 2 |
| MiniMax M2.5 | 0 | 1 | 0 | 0 | 1 |
| GPT-6 Luna | 0 | 2 | 2 | 1 | 5 |
| Muse Glimmer 30B | 1 | 0 | 0 | 1 | 2 |

## Sources returned with these answers

The sites and pages cited by the answers that named Google Meridian, from 104 of the 107 answers that named it (only the models that return a source list).

### Domains cited

- usermaven.com: 46
- admetrics.io: 36
- improvado.io: 35
- aboutmartech.com: 34
- cometly.com: 34
- sellforte.com: 33
- gane.ai/index: 27
- segmentstream.com: 27
- vezadigital.com: 25
- mammoth.io: 24

### Pages cited

- https://admetrics.io/compare/best-marketing-mix-modeling-tools-software: 33
- https://vezadigital.com/post/marketing-attribution-tools: 25
- https://mammoth.io/blog/marketing-attribution-software: 24
- https://segmentstream.com/blog/articles/best-mmm-software-tools: 23
- https://vexpower.com/mmm/marketing-mix-modeling-software: 20
- https://bluealpha.ai/articles/best-marketing-mix-modeling-software: 17
- https://improvado.io/blog/marketing-mix-modeling-providers: 16
- https://prettyinsights.com/best-marketing-attribution-tools: 16

## The company

Google; https://google.com; Mountain View, California, United States; founded 1998; part of Alphabet Inc.. From Wikidata, fetched 2026-09-14.

## Record

- Method: https://www.gane.ai/index/gtm/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/gtm.