Google Vertex AI: AI Visibility Report
When buyers ask ChatGPT, Claude, and Gemini about ai app builders, Google Vertex AI ranks #14 of 15, a Visibility Score of 7 in AI App Builders .
These rankings are measured from what the three models know from training, not a live web search. The live-web grounded surface is rolling out across the index. Methodology.
One field, one race, nearly last place.
Where it wins. The only foothold Google Vertex AI has is AI App Builders, where 'Enterprise pick' surfaces as a prompt theme, meaning the models at least associate it with larger-org buying contexts. An 8% mention rate keeps it technically on the board.
Where it loses. Rank 14 of 15 with zero first-pick selections tells the real story: buyers asking AI what to buy hear about AWS Bedrock and Azure AI first, and Vertex AI lands near the bottom of a list it barely made.
AI-generated analysis of the September 2026 measurements.
ChatGPT 
Claude 
Gemini Being named is not the same as being recommended. Each mention is graded endorsed (a strong pick), listed (a neutral option), or caveated (named with a reservation).
Share of each theme's answers that mention Google Vertex AI. Hover a row for the exact prompt. Compare shapes on the head-to-head page.
Gaps Best overall · Use-case fit · Top tools in 2026 · Startup & small team · Feature-led ask · If you could pick one · Budget & alternatives
Share of Google Vertex AI's mentions where the AI models name this brand in the same answer. That is the real competitive set in the AI channel.
Scores are measured from real AI answers, refreshed monthly. Methodology.
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