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Head-to-head · Ai Agent Automation

Google Vertex AI Agent Builder vs Relevance AI

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score Google Vertex AI Agent Builder #2 in Ai Agent Automation 9.2/10 Paid ✓ 0 of 2 features Visit Google Cloud
Relevance AI #4 in Ai Agent Automation 8.8/10 Free plan Free plan✓ 0 of 2 features Visit Relevance AI

Google Vertex AI Agent Builder leads on 0 checks, Relevance AI on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreGoogle Vertex AI Agent Builder · 9.2/10
  • Free planonly Relevance AI

Google Vertex AI Agent Builder scores higher on our rubric for ai agent automation: 9.2 against 8.8 out of 10; our editors rank them #2 and #4.

Google Vertex AI Agent Builder is the better fit for enterprises building agents on Google Cloud. Relevance AI is the better fit for teams connecting AI agents to business apps.

  • Google Vertex AI Agent Builder fits best

    Enterprises building agents on Google Cloud

  • Relevance AI fits best

    Teams connecting AI agents to business apps

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Side by side

Feature Google Vertex AI Agent Builder 9.2/10 Visit ↗ Relevance AI 8.8/10 Visit ↗
At a glance
Editor score 9.2 8.8
Ranking #2 in Ai Agent Automation #4 in Ai Agent Automation
Best for Enterprises building agents on Google Cloud Teams connecting AI agents to business apps
Pricing model Paid Free plan + paid
Starting price — $19/mo
Free plan Not checked yet ✓ (best)
Free trial — —
Deployment Cloud Cloud
Platforms Web Web
Support Community, Docs Tickets, Community, Docs
Integrations 6 integrations 2,000+ integrations
Built for Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Google Vertex AI Agent Builder 0/2 · Relevance AI 0/2
Self-hosted option Not checked yet Not checked yet
Human approval steps Not checked yet Not checked yet
Specs
Agent builder Not checked yet Not checked yet
Model providers Not checked yet Not checked yet
Workflow triggers Not checked yet Not checked yet
Execution limit Not checked yet Not checked yet
Our review
Pros
  • Combines visual Agent Studio with the code-first Agent Development Kit
  • Supports multi-agent workflows, grounding tools, sessions, and long-term memory
  • Managed deployment, IAM, agent identity, governance, and observability
  • Build agents and multi-agent teams with no-code tools and workflows
  • Connect to 2,000+ integrations, including Slack, Gmail, and Salesforce
  • Use event triggers, branching, schedules, queues, and task monitoring
Cons
  • Deployment is limited to Google Cloud
  • Pricing varies by usage, resources, and model configuration
  • Tool and data connections center on Google Cloud and its listed ecosystem
  • Free plan is limited to 1 workforce, 1 user, and 1 project
  • Pro has 2 build users; Team starts at $234/month billed annually
  • Platform is cloud-only, with web and API access
Our verdict

Google Vertex AI Agent Builder, presented within Gemini Enterprise Agent Platform, is a suite for developing and operating AI agents on Google Cloud. It serves mid-market and enterprise teams that want to create agents through a visual…

Read the review →

Relevance AI is a cloud platform for building AI agents, reusable tools, and multi-agent workforces, with low-code/no-code workflows for business tasks. It is aimed at solo operators and teams that want agents to work with applications…

Read the review →
  1. Google Vertex AI Agent BuilderAi Agent Automation 9.2Paid
  2. Relevance AIAi Agent Automation 8.8Free plan

Strengths and trade-offs

  • Google Vertex AI Agent Builder — where it wins

    • Combines visual Agent Studio with the code-first Agent Development Kit
    • Supports multi-agent workflows, grounding tools, sessions, and long-term memory
    • Managed deployment, IAM, agent identity, governance, and observability

    Where it doesn't

    • Deployment is limited to Google Cloud
    • Pricing varies by usage, resources, and model configuration
    • Tool and data connections center on Google Cloud and its listed ecosystem

  • Relevance AI — where it wins

    • Build agents and multi-agent teams with no-code tools and workflows
    • Connect to 2,000+ integrations, including Slack, Gmail, and Salesforce
    • Use event triggers, branching, schedules, queues, and task monitoring

    Where it doesn't

    • Free plan is limited to 1 workforce, 1 user, and 1 project
    • Pro has 2 build users; Team starts at $234/month billed annually
    • Platform is cloud-only, with web and API access

More comparisons

All ai agent automation comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update