Vertex AI Agent Builder
Google Cloud's managed platform for building conversational agents
Verdict
Best for GCP-native teams. Integrates with Google Search, datastores, and Gemini models. Dialogflow CX migration path. Good enterprise controls but less flexible than open frameworks.
Other AI Agents & Platforms
- OpenAI Responses APIProduction
OpenAI's current API for building agents — merges Chat Completions simplicity with Assistants-era tool use
- OpenAI Assistants APISuperseded
Managed agent platform with tools, files, and persistent threads — deprecated in favour of the Responses API
- Claude MCP / Tool UseProduction
Anthropic's Model Context Protocol for universal tool integration
- Microsoft Copilot StudioProduction
Enterprise agent builder with Microsoft 365 and Azure integration
- AutoGenStable
Microsoft's multi-agent conversation framework
- CrewAIStable
Role-based multi-agent framework with simple, intuitive API