Shortlist by what you need
Start here if you know why you are leaving Vertex AI Agent Builder.
Want the closest match?
Microsoft Copilot StudioMost similar to Vertex AI Agent Builder in what it does, its category and its price.
Visit (opens Microsoft Copilot Studio in a new tab)Need a free plan?
MindStudioHas a free plan, rated 4.4 out of 5. Vertex AI Agent Builder has none.
Visit (opens MindStudio in a new tab)Want the lowest price?
Microsoft Power AutomateFrom $15/mo, the lowest starting price here.
Visit (opens Microsoft Power Automate in a new tab)Want the best rated?
BoomiRated 4.4 out of 5 in our review, against 4.2 for Vertex AI Agent Builder.
Visit (opens Boomi in a new tab)
At a glance
Green means better than Vertex AI Agent Builder, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 Vertex AI Agent BuilderBaseline | 4.2 | Not listed | No | Google Cloud's full agent platform, grounded in Search and Gemini | |
| Microsoft Copilot Studio | 4.2Same | $200/mo | No | Microsoft's low-code builder for custom Teams and 365 copilots | vs Vertex AI Agent Builder |
| Microsoft Power Automate | 4.3+0.1 | $15/mo | No | Cloud flows and desktop RPA under one Microsoft roof | vs Vertex AI Agent Builder |
 Amazon Bedrock AgentCore | 4.2Same | Not listed | No | Production infrastructure for agents, not a builder itself | vs Vertex AI Agent Builder |
| MindStudio | 4.4+0.2 | $20/mo | YesVertex AI Agent Builder has none | Build an AI agent, then publish and monetize it | vs Vertex AI Agent Builder |
| Boomi | 4.4+0.2 | $99/mo | No | Integration platform that connects apps, data, and AI agents across an enterprise stack. | vs Vertex AI Agent Builder |
 Cassidy | 4.2Same | Free | YesVertex AI Agent Builder has none | Turns a company's internal knowledge into a Slack-native assistant | vs Vertex AI Agent Builder |
 IBM watsonx Orchestrate | 4.2Same | $500/mo | No | Ships 100+ prebuilt domain agents for HR, procurement, and sales out of the box | vs Vertex AI Agent Builder |
 Dify | 4.4+0.2 | $59/mo | YesVertex AI Agent Builder has none | A fuller LLMOps platform, not just a flow visualizer | vs Vertex AI Agent Builder |
The alternatives in detail
In order of how closely each one matches Vertex AI Agent Builder.
Microsoft Copilot Studio
4.2$200/mo
vs Vertex AI Agent BuilderSame
Microsoft's low-code builder for custom Teams and 365 copilots.
- Low-code conversational agent builder
- Deep integration with Teams, SharePoint, and Dynamics 365
- Grounding in Dataverse records and internal APIs
Tight integration removes separate identity and hosting setup for Microsoft shops
High price point reflects enterprise-only positioning
Microsoft Power Automate
4.3$15/mo
vs Vertex AI Agent Builder+0.1
Cloud flows and desktop RPA under one Microsoft roof.
- Cloud flows for SaaS app integration
- Desktop RPA for legacy software automation
- AI-generated steps layered into traditional flows
Combines cloud integration and desktop RPA in one platform
Per-user pricing adds up for larger teams
Amazon Bedrock AgentCore
4.2Not listed
vs Vertex AI Agent BuilderSame
Production infrastructure for agents, not a builder itself.
- Framework-agnostic runtime for LangChain, OpenAI Agents SDK, Claude Agent SDK, and more
- Managed gateway for secure API and knowledge base access
- Session and memory management for long-running agents
Works with agents built on any framework, not locked to one ecosystem
Not a building tool, requires an agent already built elsewhere
MindStudio
4.4$20/mo
vs Vertex AI Agent Builder+0.2Free plan
Build an AI agent, then publish and monetize it.
- No-code AI agent and workflow builder
- Marketplace for publishing and monetizing finished agents
- Testing and iteration tools before public release
Marketplace option is a genuine point of difference from internal-only builders
Marketplace monetization matters less for purely internal automation needs
Boomi
4.4$99/mo
vs Vertex AI Agent Builder+0.2
Integration platform that connects apps, data, and AI agents across an enterprise stack.
- Visual low-code integration builder for connecting applications and APIs
- AtomSphere runtime for deploying and monitoring integration processes
- Agentstudio framework for building AI agents that execute automation tasks
Two decades of integration-platform maturity with proven uptime at enterprise scale
List prices are not published for Enterprise tiers; nearly every serious deployment routes to a sales quote
Cassidy
4.2Free
vs Vertex AI Agent BuilderSameFree plan
Turns a company's internal knowledge into a Slack-native assistant.
- AI assistants grounded in a company's own internal documents
- Slack-native deployment for in-context answers
- No-code workflow builder for custom business processes
Answers grounded in actual internal company knowledge, not generic information
No free tier to test before committing
IBM watsonx Orchestrate
4.2$500/mo
vs Vertex AI Agent BuilderSame
Ships 100+ prebuilt domain agents for HR, procurement, and sales out of the box.
- 100+ prebuilt domain-specific agents for HR, procurement, and sales
- 400+ prebuilt tools ready to deploy without custom building
- Integration with 700+ enterprise systems
Prebuilt agent catalog gets enterprise teams to a working agent faster than building from scratch
No permanent free plan, only a 30-day trial
Dify
4.4$59/mo
vs Vertex AI Agent Builder+0.2Free plan
A fuller LLMOps platform, not just a flow visualizer.
- Visual builder for RAG pipelines and agent workflows
- Built-in production observability and usage monitoring
- One-click deployment to API or embeddable chat widget
Covers the full lifecycle from building to deploying to monitoring
Broader scope adds complexity versus simpler single-purpose builders
FAQ
Questions people ask
Is Vertex AI Agent Builder free?
Vertex AI Agent Builder does not list a free plan. Check its pricing page for current plans.
What is the best free alternative to Vertex AI Agent Builder?
MindStudio is the highest-rated alternative here with a free plan (4.4 out of 5). Other free options: Dify, Cassidy.
What is the cheapest alternative to Vertex AI Agent Builder?
Among paid plans, Microsoft Power Automate has the lowest starting price (from $15/mo). If you need it free, start with MindStudio.
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.