AI Indexes
GTM AI Index
September 2026 Edition, expanded tier · The six flagship models on every category, as published September 9, 2026. The public index runs on the standard tier; this record is what the Expanded Edition Pack delivers on one category. The public index →
Index › Editions › September 2026 Edition
Expanded tier · September 2026

September 2026 Edition

Published September 9, 2026. This page is the permanent record of the September 2026 Edition: the standing of every category as measured in it, under vendor table v2026-10-05.2. The unqualified category addresses and the home page carry the latest edition.

73 categories · 6 models · 438 prompts · 2,628 answers · 17,395 judge labels, all published

The leaderboard

The first choice in all 73 categories · 42 unsettled
The latest edition →
Share is the count of first choices across the direct, paraphrase, budget and scale prompts, over all six models. Each row opens that category's page for this edition.What the verdicts mean
GTM data and infrastructure
Tag management
Revenue operations
Proposal software
GTM data and infrastructure
Data enrichment
GTM data and infrastructure
Workflow automation and iPaaS
Revenue operations
CPQ
Revenue operations
CRM
GTM data and infrastructure
Customer data platforms
GTM data and infrastructure
Product analytics
Marketing
Print
GTM data and infrastructure
Email verification
GTM data and infrastructure
Consent and privacy management
GTM data and infrastructure
Data management platforms
Revenue operations
Ecommerce platforms
GTM data and infrastructure
Identity resolution
AiSDR tiedContested
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Revenue operations
Order management systems
Collecting
Mid-market
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Revenue operations
Pricing optimization
Collecting
Mid-market
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Collecting
Mid-market
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GTM data and infrastructure
Address verification tools
Collecting
Mid-market
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GTM data and infrastructure
Data clean rooms
Collecting
Mid-market
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GTM data and infrastructure
Market intelligence platforms
Collecting
Mid-market
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GTM data and infrastructure
Session replay and heatmaps
Collecting
Mid-market
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GTM data and infrastructure
Web analytics
Collecting
Mid-market
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Movement since September 2026

Between the September 2026 Edition and the September 2026 Edition the leader changed in zero of zero categories, zero of them by more than the noise floor of 12 points. Zero of 0 changes in first-choice share clear the floor.
0Categories compared
0Products changed
0Moved past the floor
0Leader changes
0Verdict changes

Leader changes

No category changed leader.

The floor is 12 points of share, measured: how far the models move a leader on their own when the same questions are asked twice with nothing changed. A larger change is movement; a smaller one is noise, and both are shown. How the floor is measured · Every change resolves to its category page and to the previous edition's record on the Data page.

The models asked

Six models: the generally available models a buyer meets as a default in an assistant, with search on. Six joined this edition and twelve left. A model joins at an edition boundary and stays at least three editions; movement is read over the models both editions asked, so a join never moves a share on its own. The roster rule.
ModelVersion asked forLabHow it searchesIn the set since
Claude Opus 5claude-opus-5Anthropicnative searchSeptember 2026 · joined this edition
Claude Opus 4.8claude-opus-4-8Anthropicnative searchSeptember 2026 · joined this edition
GPT-6 Astragpt-6-astraOpenAInative searchSeptember 2026 · joined this edition
GPT-5.6 Solgpt-5.6-solOpenAInative searchSeptember 2026 · joined this edition
Gemini 3.1 Progemini-3.1-pro-previewGooglenative searchSeptember 2026 · joined this edition
Perplexity Sonar Prosonar-proPerplexitynative searchSeptember 2026 · joined this edition
anthropic-smallclaude-haiku-4-5Anthropicleft the setasked until September 2026
openai-smallgpt-5.4-miniOpenAIleft the setasked until September 2026
google-smallgemini-3.5-flashGoogleleft the setasked until September 2026
challenger-smallsonarPerplexityleft the setasked until September 2026
xai-smallspacexai/grok-4.20-non-reasoningxAIleft the setasked until September 2026
mistral-smallmistral/mistral-smallMistralleft the setasked until September 2026
deepseek-smalldeepseek/deepseek-v4-flashDeepSeekleft the setasked until September 2026
meta-smallmeta/llama-4-maverickMetaleft the setasked until September 2026
alibaba-smallalibaba/qwen3.7-flashAlibabaleft the setasked until September 2026
moonshot-smallmoonshotai/kimi-k2Moonshotleft the setasked until September 2026
zai-smallzai/glm-4.7-flashxZ.AIleft the setasked until September 2026
minimax-smallminimax/minimax-m2.5MiniMaxleft the setasked until September 2026

The record

The prompts, the model set, the vendor table the edition was scored under and the report, free to download and to cite. The raw judge labels and full answers are sent on request.
Cite this edition
GTM AI Recommendation Index, September 2026 Edition. gtm-ai-index.com. Scored under vendor table v2026-10-05.2.