GTM AI Index
September 2026 Edition · The permanent record of this edition. The unqualified address always carries the latest edition.
Index GTM data and infrastructure September 2026 Edition

Tag management

Asked as “tag management system”, and as “website tag manager”, on behalf of a mid-market B2B company. 47 first choices recorded across the direct, paraphrase, budget and scale prompts, twelve models each.
Standing
Clear leader
77% of first choices, clear leader.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment; they sit side by side and are never added together.

01The standing

Share is the count of first choices across the direct, paraphrase, budget and scale prompts, over all twelve models, for a mid-market B2B company. Ordered by share.
ProductFirst-choice shareNegative rateLabelsQuadrant
01Google Tag Manager77%19%72endorsed leader
02Tealium iQ9%36%36criticized challenger
03Tealium4%32%19criticized challenger
04Adobe Experience Platform Tags2%23%43accepted challenger
Show the six products at 0%, ordered by negative rate
10Ensighten0%47%15criticized challenger
07Segment0%10%31accepted challenger
06Piwik PRO0%9%33accepted challenger
05Matomo Tag Manager0%0%24accepted challenger
09Matomo0%0%15accepted challenger
08Piwik PRO Tag Manager0%0%12accepted challenger
Bars are the share of first choices, 0 to 100Every product with at least 10 labels here. Every product name links to its vendor page.

One product takes 77% of first choices here, so the chart would put nine markers in one corner and one at the far edge. The two measurements it plots are columns in the standing above: share, and the negative label rate. Three products carry a negative rate above 25% in this category. Jump to the standing

02What they warned about

Six of twelve models held their first choice under the paraphrase. Claude Haiku 4.5, Gemini 3.5 Flash, Mistral Small, Llama 4 Maverick, Qwen 3.7 Flash and MiniMax M2.5 changed. A high negative share on a product with few labels is a warning. A low share on a product with many labels is salience, not sentiment.
Google Tag Manager
19%
14 of 72 labels negative · 10 of 12 models · 1 hard negative
“Avoid entirely: - Google Tag Manager for any privacy-conscious organization” Mistral Small, negative prompt
Adobe Experience Platform Tags
23%
10 of 43 labels negative · 8 of 12 models · 3 hard negative
“Avoid on a tight budget: ... Adobe Launch (bundled with expensive Adobe Cloud)” DeepSeek V4 Flash, budget prompt
Tealium iQ
36%
13 of 36 labels negative · 7 of 12 models · 2 hard negative
“they are generally **not recommended** for mid-market B2B companies” Gemini 3.5 Flash, direct prompt
Ensighten
47%
7 of 15 labels negative · 5 of 12 models · 4 hard negative
“Acquired by **CHEQ** in August 2022 ... Customer adoption has been declining since” DeepSeek V4 Flash, negative prompt

03What they cite

Citations exist only for the models that return a source list: four of the twelve in this edition, and all six flagship models on the expanded tier.

Sites the answers cite

19 of 72 answers in this category came back with a source list, from 4 of 12 models: citations where the model returns them, or the search results it consulted. 6 of those lists are Google grounding redirects that name no site and are left out of the counts. 167 links across 65 sites, every framing counted. Ranked by the number of answers carrying the site or page. The other 8 models searched through a gateway that returned no source list on this edition.

vendor site · Tealium6 answers · 7 citations · 2 models
6 answers · 6 citations · 2 models
5 answers · 9 citations · 1 model
vendor site · 6sense5 answers · 5 citations · 2 models
5 answers · 5 citations · 1 model
vendor site · Gartner5 answers · 5 citations · 1 model
vendor site · Guideflow5 answers · 5 citations · 2 models
vendor site · ObservePoint5 answers · 5 citations · 1 model
vendor site · PeerSpot5 answers · 5 citations · 2 models
vendor site · Usercentrics5 answers · 5 citations · 1 model
vendor site · Google Search4 answers · 11 citations · 2 models
4 answers · 4 citations · 2 models

Pages the answers cite

The ten pages named in the most answers, by full address. A page here is one the models returned with a recommendation, not one the index endorses.

04How they answered

Six framings of the same buying question, each sent to every model in a fresh session with search on. One row per model, so a row shows whether it held its answer under rewording, what it named when cost was the constraint, and what it argued against. Computed from the raw judge labels.
ModelDirect“What is the best tag management system for a mid-market B2B company?”Paraphrase“Which website tag manager would you recommend to a mid-sized B2B company?”Comparative“What are the top tag management systems and how do they differ?”Budget-constrained“What is the best tag management system for a company with a limited budget?”Scale-constrained“We are a 500 person company evaluating a tag management system. What should we look at?”Negative“Which tag management systems should I avoid or be cautious about?”
Claude Haiku 4.5no first choiceagainst: Adobe Real-Time CDPGoogle Tag ManagerChanged
Three alternativesMatomo Tag Manager, Segment, Tealium iQ
against: Adobe Experience Platform Tags
Google Tag Manager, Tealium Customer Data Hub
Three alternativesAdobe Experience Platform Tags, Matomo, Piwik PRO
Google Tag Manager
Two alternativesHeap, Segment
no first choiceagainst: GTM
GPT-5.4 miniGoogle Tag Manager
One alternativeTealium iQ
Google Tag ManagerHeld
Two alternativesAdobe Experience Platform Tags, Tealium iQ
Google Tag Manager
Four alternativesAdobe Experience Platform Tags, Matomo Tag Manager, Piwik PRO Tag Manager, Tealium iQ Tag Management
Google Tag Manager
One alternativegtag.js
no first choiceagainst: Google Tag Manager
Gemini 3.5 FlashGoogle Tag Manager
Three alternativesPiwik PRO Tag Manager, Segment, Stape.io
against: Adobe Experience Platform Tags, Tealium iQ
Google Tag Manager, Server-Side GTMChanged
Two alternativesPiwik PRO Tag Manager, Segment
against: Tealium
Google Tag Manager
Six alternativesAdobe Experience Platform (AEP) Tags, Commanders Act, Matomo Tag Manager, Piwik PRO Tag Manager, Segment, Tealium iQ
Google Tag Manager
Two alternativesMatomo Tag Manager, Stape.io
against: Piwik PRO
Google Tag Manager
Four alternativesAdobe Experience Platform (AEP) Tags, Piwik PRO Tag Manager, RudderStack, Segment
against: Tealium iQ
against: Adobe Dynamic Tag Management, Commanders Act, Ensighten Manage, Google Tag Manager, Qubit OpenTag, Signal, Tealium iQ
Perplexity SonarGoogle Tag Manager
Two alternativesPiwik PRO, Tealium
against: Adobe Experience Platform Tags
Google Tag ManagerHeld
Three alternativesMatomo Tag Manager, Piwik PRO, Tealium
Google Tag Manager
Four alternativesAdobe Experience Platform Tags, Matomo Tag Manager, Piwik PRO Tag Manager, Tealium iQ
against: Ensighten, Qubit OpenTag, TagCommander
Google Tag Manager
One alternativePiwik PRO
against: Adobe Experience Platform Tags, Tealium
no first choiceagainst: Google Tag Manager
Grok 4.1 FastGoogle Tag Manager
Four alternativesAdobe Experience Platform Tags, Matomo, Piwik PRO, Tealium iQ
Google Tag ManagerHeld
Three alternativesAdobe Experience Platform Tags, Matomo, Piwik PRO
against: Tealium iQ
Google Tag Manager
Four alternativesAdobe Experience Platform Tags, Matomo Tag Manager, Piwik PRO Tag Manager, Tealium iQ
Google Tag Manager
One alternativeMatomo Tag Manager
against: Piwik PRO, Segment
Google Tag Manager, Tealium iQ
Three alternativesAdobe Experience Platform Tags, Ensighten Manage, Piwik PRO
against: Google Tag Manager
against: Adobe Dynamic Tag Management, Ensighten, Google Tag Manager, Tealium iQ
Mistral SmallTealium iQ
Two alternativesAdobe Experience Platform Tags, Segment
Google Tag ManagerChanged
Two alternativesPiwik PRO Tag Manager, Tealium iQ
against: Adobe Experience Platform Tags
Google Tag Manager
Six alternativesAdobe Experience Platform Tags, Ensighten Manage, Matomo Tag Manager, Piwik PRO Tag Manager, TagCommander, Tealium iQ
Google Tag Manager
Two alternativesMatomo Tag Manager, Stape
no first choiceagainst: Adobe Experience Platform Tags, Google Tag Manager, Tealium iQ
DeepSeek V4 FlashGoogle Tag Manager
Two alternativesPiwik PRO, Segment
against: Ensighten, Tealium
Google Tag ManagerHeld
Four alternativesAdobe Experience Platform Tags, Matomo Tag Manager, Piwik PRO, Segment
against: Tealium iQ
Google Tag Manager
Seven alternativesAdobe Experience Platform Tags, Commanders Act TagCommander, Ensighten Manage, Matomo Tag Manager, Piwik PRO Tag Manager, Segment, Tealium iQ
Google Tag Manager
One alternativeMatomo Tag Manager
against: Adobe Experience Platform Tags, Ensighten, Piwik PRO, Tealium
Google Tag Manager, Tealium
Four alternativesAdobe Experience Platform Tags, Ensighten, Piwik PRO, Segment
against: Adobe Real-Time CDP, BrightTag, Ensighten, Google Tag Manager, Segment, Signal, TagMan, Tealium iQ
Llama 4 MaverickIngest IQGoogle Tag ManagerChangedno first choice
Five alternativesAdobe Experience Platform Tags, Google Tag Manager, Matomo, Piwik PRO, Tealium iQ
Google Tag Managerno first choicenothing named
Qwen 3.7 FlashIngest IQ
Two alternativesGoogle Tag Manager, Piwik PRO
against: Tealium iQ
Google Tag ManagerChanged
One alternativeSegment
against: Adobe Experience Platform Tags, Tealium iQ
Google Tag Manager
Four alternativesEnsighten, Segment, Tealium, mParticle
Google Tag Manager
One alternativeMatomo Tag Manager
against: Adobe Experience Manager, Ensighten, Tealium
Ingest IQ
Two alternativesMatomo, Piwik PRO
against: Adobe Real-Time CDP, Google Tag Manager, Tealium iQ
against: Google Tag Manager
Kimi K2Google Tag Manager
Two alternativesIngest IQ, Segment
against: Adobe Experience Platform Tags, Tealium iQ
Google Tag ManagerHeld
One alternativeSegment
against: Tealium
Google Tag Manager
Five alternativesAdobe Experience Platform Tags, Ensighten Manage, Matomo Tag Manager, Piwik PRO Tag Manager, Tealium iQ
against: Segment
Google Tag Manager
Two alternativesMatomo Tag Manager, Piwik PRO
against: Google Tag Manager
Google Tag Manager
Two alternativesAdobe Experience Platform Tags, Tealium iQ
against: Adobe Dynamic Tag Management, Google Tag Manager, SonicWall Global Management System, TagGator
GLM 4.7 FlashXGoogle Tag Manager
Two alternativesAdobe Experience Platform Tags, Tealium iQ
Google Tag ManagerHeld
Three alternativesAdobe Experience Platform Tags, Segment, Tealium iQ
Google Tag Manager
Six alternativesAdobe Experience Platform Tag Management, Ensighten, Matomo Tag Manager, Piwik PRO, TagCommander, Tealium iQ
against: Ingest IQ, ObservePoint
Google Tag Manager
Three alternativesMatomo Tag Manager, Piwik PRO, Segment
Tealium iQ
One alternativeAdobe Experience Platform Tags
against: Google Tag Manager
against: Adobe Dynamic Tag Manager, BrightTag, Google Tag Manager
MiniMax M2.5Google Tag Manager
Three alternativesIngest IQ, Piwik PRO Tag Manager, Tealium iQ Tag Management
Google Tag Manager, Tealium iQChangedGoogle Tag Manager
Three alternativesAdobe Experience Platform Tags, Piwik PRO, Tealium iQ
Google Tag Manager
Two alternativesTagmate, Usercentrics
Adobe Experience Platform Tags, Tealium
One alternativeGoogle Tag Manager
against: Adobe Experience Platform Tags, Ensighten, Google Tag Manager, Tealium iQ
Bold is the first choiceAlternatives are counted; the count opens them.What the answer argued against

05The record

One row per call: the version string exactly as returned, whether the model searched, sources cited, and latency. Full answer text is in the free responses file. Download the record
Seventy-two rows: every prompt, every model, every answer.
PromptModelVersion stringTime (UTC)SearchedSourcesLatency
Direct recommendationClaude Haiku 4.5claude-haiku-4-5-202510012026-09-15 04:13no04 s
Direct recommendationGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-15 05:02yes25 s
Direct recommendationGemini 3.5 Flashgemini-3.5-flash2026-09-15 00:42yes2321 s
Direct recommendationPerplexity Sonarsonar2026-09-15 00:36yes204 s
Direct recommendationGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-15 02:47yes08 s
Direct recommendationMistral Smallmistral/mistral-small via mistral2026-09-14 23:07yes08 s
Direct recommendationDeepSeek V4 Flashdeepseek/deepseek-v4-flash via fireworks2026-09-15 04:18yes020 s
Direct recommendationLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-15 03:12yes01 s
Direct recommendationQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-15 04:46yes040 s
Direct recommendationKimi K2moonshotai/kimi-k2 via novita2026-09-15 03:20yes054 s
Direct recommendationGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-15 04:11yes033 s
Direct recommendationMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-14 23:58yes019 s
ParaphraseClaude Haiku 4.5claude-haiku-4-5-202510012026-09-15 00:19no04 s
ParaphraseGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-15 00:24yes34 s
ParaphraseGemini 3.5 Flashgemini-3.5-flash2026-09-14 23:16yes820 s
ParaphrasePerplexity Sonarsonar2026-09-15 04:17yes204 s
ParaphraseGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-15 01:05yes08 s
ParaphraseMistral Smallmistral/mistral-small via mistral2026-09-15 00:10yes09 s
ParaphraseDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-09-15 03:37yes022 s
ParaphraseLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-15 03:32yes02 s
ParaphraseQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-15 00:40yes071 s
ParaphraseKimi K2moonshotai/kimi-k2 via novita2026-09-15 05:03yes019 s
ParaphraseGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-15 00:00yes060 s
ParaphraseMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-15 03:38yes026 s
ComparativeClaude Haiku 4.5claude-haiku-4-5-202510012026-09-15 01:56yes88 s
ComparativeGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-14 23:29yes87 s
ComparativeGemini 3.5 Flashgemini-3.5-flash2026-09-15 03:20yes1528 s
ComparativePerplexity Sonarsonar2026-09-15 02:48yes207 s
ComparativeGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-15 03:45yes06 s
ComparativeMistral Smallmistral/mistral-small via mistral2026-09-15 05:00yes08 s
ComparativeDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-09-14 23:01yes071 s
ComparativeLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-15 04:32yes02 s
ComparativeQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-15 01:31no036 s
ComparativeKimi K2moonshotai/kimi-k2 via novita2026-09-14 23:12yes036 s
ComparativeGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-15 00:11yes045 s
ComparativeMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-15 04:31yes013 s
Budget constrainedClaude Haiku 4.5claude-haiku-4-5-202510012026-09-15 00:47no05 s
Budget constrainedGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-14 23:32yes44 s
Budget constrainedGemini 3.5 Flashgemini-3.5-flash2026-09-15 02:24yes1521 s
Budget constrainedPerplexity Sonarsonar2026-09-15 04:55yes2015 s
Budget constrainedGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-15 02:05yes06 s
Budget constrainedMistral Smallmistral/mistral-small via mistral2026-09-15 02:48yes06 s
Budget constrainedDeepSeek V4 Flashdeepseek/deepseek-v4-flash via fireworks2026-09-15 05:01yes014 s
Budget constrainedLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-14 23:58yes01 s
Budget constrainedQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-15 04:34no024 s
Budget constrainedKimi K2moonshotai/kimi-k2 via novita2026-09-15 02:47yes013 s
Budget constrainedGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-15 04:20yes015 s
Budget constrainedMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-15 02:34yes010 s
Scale constrainedClaude Haiku 4.5claude-haiku-4-5-202510012026-09-15 04:51no06 s
Scale constrainedGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-15 03:30no05 s
Scale constrainedGemini 3.5 Flashgemini-3.5-flash2026-09-15 05:01yes928 s
Scale constrainedPerplexity Sonarsonar2026-09-15 03:53yes2024 s
Scale constrainedGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-15 03:26yes08 s
Scale constrainedMistral Smallmistral/mistral-small via mistral2026-09-15 00:55no06 s
Scale constrainedDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-09-14 23:48yes080 s
Scale constrainedLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-15 00:24yes03 s
Scale constrainedQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-15 01:40yes040 s
Scale constrainedKimi K2moonshotai/kimi-k2 via novita2026-09-15 00:46yes026 s
Scale constrainedGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-15 02:13yes0202 s
Scale constrainedMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-15 04:37yes013 s
Negative framingClaude Haiku 4.5claude-haiku-4-5-202510012026-09-15 03:03yes1710 s
Negative framingGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-15 04:27yes56 s
Negative framingGemini 3.5 Flashgemini-3.5-flash2026-09-15 00:14yes1524 s
Negative framingPerplexity Sonarsonar2026-09-15 00:53yes206 s
Negative framingGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-15 01:22yes011 s
Negative framingMistral Smallmistral/mistral-small via mistral2026-09-15 00:24yes011 s
Negative framingDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-09-15 02:21yes065 s
Negative framingLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-14 23:38yes04 s
Negative framingQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-14 23:00yes044 s
Negative framingKimi K2moonshotai/kimi-k2 via novita2026-09-15 01:35yes050 s
Negative framingGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-15 03:52yes0115 s
Negative framingMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-15 03:45yes056 s

Normalization in this category

Every judgment call made between the raw labels and the numbers above, listed so it is visible and reversible.

Category-scoped readings
None. Every name in this category resolved on its own.
Unresolved, counted raw
AddThis
Adobe Dynamic Tag Manager (DTM)
Adobe Experience Platform (AEP) Data Collection / Tags
Adobe Experience Platform Tag Management
Falcon
Friendly Analytics
GTM
SonicWall Global Management System (GMS)
TAGGRS
TagGator
gtag.js
Discontinued, still offered
No shut-down product was recommended here.
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