Google Agent Development Kit vs n8n

The core difference is approach: n8n is a visual workflow automation platform that embeds AI agents as part of broader business processes, while Google ADK is a developer framework for building production-grade AI agents. n8n excels in pre-built integrations (500+) and human-in-the-loop approvals, with a node-based canvas showing every reasoning step. It supports multi-agent and RAG but focuses on workflow automation. Google ADK offers multi-language SDKs (Python, TypeScript, Go, Java, Kotlin) and graph-based workflows that blend deterministic logic with LLM reasoning. It provides robust evaluation (custom metrics, user simulation) and observability (logging, traces), plus session management with rewind/migration. ADK integrates deeply with Google Cloud services (Cloud Run, GKE, Apigee) and supports multiple models (Gemini, Claude, Gemma, Ollama). n8n is better for IT, security, and sales teams wanting drag-and-drop automation with code flexibility; ADK suits developers building complex agent orchestration at scale.

n8n uses a freemium model: free self-hosted (unlimited workflows, but limited features) or paid cloud plans starting at $20/month for the starter tier. The cloud offers managed hosting, while self-host gives full control. Google ADK is entirely free and open-source, with no usage limits. However, running ADK agents at scale on Google Cloud incurs infrastructure costs (e.g., Cloud Run, GKE). For small teams or individuals, n8n's free self-host is powerful; for enterprises already invested in Google Cloud, ADK's zero licensing cost is appealing. n8n's pricing becomes expensive at high volumes, while ADK's costs are purely variable based on compute and storage. Overall, ADK offers lower entry cost for developers, but n8n provides a visual builder that may reduce engineering hours.