Vertex AI Agent Builder vs Relevance AI

A detailed comparison to help you choose between Vertex AI Agent Builder and Relevance AI.

Vertex AI Agent Builder

Vertex AI Agent Builder

Build and deploy AI agents on Google Cloud

Relevance AI

Relevance AI

Build and deploy AI agents without coding

Rating4.1 (505 reviews)4.7 (507 reviews)
Pricing Modelusage-basedfreemium
Starting PriceFree tier availableFree tier available
Best ForGCP developers building production AI agentsNon-technical teams and business operations looking to automate repetitive workflows with AI agents quickly.
Free Tier
API Access
Team Features
Open Source
Tags
api accessteam features
no codeteam features
Visit Vertex AI Agent Builder →Visit Relevance AI →

Vertex AI Agent Builder

Pros

  • + Gemini models built-in
  • + Enterprise Google Cloud security
  • + Grounding with Google Search

Cons

  • - Requires GCP account
  • - Complex pricing
View full Vertex AI Agent Builderreview →

Relevance AI

Pros

  • + Deploy agents without writing code using drag-and-drop builder
  • + Connect to external APIs and tools directly within agent workflows
  • + Monitor agent performance and execution logs in real-time
  • + Use pre-built templates to accelerate agent creation

Cons

  • - Limited customization for complex logic compared to code-based frameworks
  • - Pricing scales with agent executions, which can add up for high-volume use cases
View full Relevance AIreview →

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Vertex AI Agent Builder vs Relevance AI — Comparison 2026 | ToolSpotter