Google Vertex AI Agent Builder lets teams build conversational agents and multi-step reasoning workflows — grounded in Google Search, enterprise data, and 100+ prebuilt connectors.
How Google Vertex AI Agents compares with its closest alternatives
4 of the 5 closest alternatives have a free plan, as Google Vertex AI Agents does. Among the 3 that list a starting price, the cheapest is Relevance AI at $19 a month and the median is $29. All 5 offer an API, as Google Vertex AI Agents does. Google Vertex AI Agents offers a web app. Of the alternatives, 4 offer a web app. Google Vertex AI Agents was founded in 2023; the alternatives were founded between 2020 and 2023, 3 of them earlier. Google Vertex AI Agents is based in San Francisco, United States; 2 of the 4 alternatives with a known headquarters are in the United States too, and the others in Australia and France.
Market position · Agents
How Google Vertex AI Agents compares in Agents
Google Vertex AI Agents has moderate opportunity and sits in the bottom third of 423 live Agents tools on FalcoScan. Across Agents, the average opportunity score is 72.6 and the average saturation score 31.5. FalcoScan rates Google Vertex AI Agents's own market position as contested. 179 of the 423 operating Agents tools have hot momentum, and FalcoScan has recorded 15 shutdowns in the category.
Google Vertex AI Agents compared with its closest alternatives
Product
Opportunity
Saturation
Pricing
Pricing from
Free plan
API
Platforms
Momentum
Google Vertex AI AgentsFounded 2023 · San Francisco, United States
Moderate
Contested
Freemium
—
Yes
Yes
Web, API
Hot
Stack AIFounded 2023 · San Francisco, United States
Google Vertex AI Agents has a free tier, with paid plans.
What are the best alternatives to Google Vertex AI Agents?
The closest alternatives to Google Vertex AI Agents that are still running, matched on the AI capabilities, uses and audience they share, are Stack AI, Haystack Agents, Relevance AI, Dust.tt, and Ema AI.
Is Google Vertex AI Agents still running?
Yes. As of 2 November 2026, FalcoScan lists Google Vertex AI Agents as operating at cloud.google.com.
Where is Google Vertex AI Agents based?
Google Vertex AI Agents is headquartered in San Francisco, United States.
Does Google Vertex AI Agents have an API?
Yes. Google Vertex AI Agents offers an API.
Who is Google Vertex AI Agents for?
Google Vertex AI Agents is built for enterprises, developers, and google cloud users.
How do I sign in to Google Vertex AI Agents?
Sign in on Google Vertex AI Agents's own website, cloud.google.com. FalcoScan reviews Google Vertex AI Agents but does not run its accounts, so logins, passwords and billing are handled by Google Vertex AI Agents directly.