THE COMPARISON / A CLOSER LOOK
Google Agent Development Kit (ADK) vs AG2
Compare the listed plans, useful capabilities, and practical tradeoffs.
Prices and features reflect editorial records. Check vendor terms before you buy; documentary checks do not imply hands-on testing.
Google Agent Development Kit (ADK)
🔴DeveloperAI Automation Platforms
Google's open-source, code-first framework for building, evaluating, and deploying AI agents.
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$0AG2
AI Automation Platforms
AG2 (formerly AutoGen) is an open-source multi-agent AI framework from the original AutoGen research team, positioned as an AgentOS — a universal runtime for…
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FreeFeature Comparison
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Google Agent Development Kit (ADK) - Pros & Cons
Pros
- ✓Completely free and open-source under Apache 2.0 license
- ✓Model-agnostic — works with Gemini, GPT, Claude, and open-source models via LiteLLM
- ✓Built-in evaluation framework that LangChain and CrewAI lack out of the box
- ✓First-class Vertex AI Agent Engine deployment with managed scaling and monitoring
- ✓Backed by Google's engineering team — same framework powers Agentspace internally
- ✓Supports both Python (1.0.0+) and Java (0.1.0+), unlike most single-language competitors
- ✓Native bidirectional streaming for voice and video agent experiences
Cons
- ✗Requires Python or Java programming knowledge — no visual builder
- ✗Released April 2025, so community is smaller than LangChain's 90K+ GitHub stars
- ✗Documentation still maturing for advanced multi-agent patterns
- ✗Best deployment experience locked to Google Cloud / Vertex AI
- ✗Fewer third-party integrations than LangChain's 700+ ecosystem connectors
- ✗Steeper learning curve than no-code alternatives like Relevance AI or BuildShip
AG2 - Pros & Cons
Pros
- ✓Only serious commercial offering built by the original AutoGen research team
- ✓Best-in-class if you need to mix agents from multiple frameworks
- ✓Core framework is free and MIT-adjacent — no vendor lock-in for a POC
- ✓Real research lineage — the underlying patterns come from published work
Cons
- ✗AgentOS is Request-Access only — no public pricing, no self-serve tier
- ✗Framework is heavier to learn than [CrewAI](/tools/crewai) for simple role-based teams
- ✗Documentation is uneven vs. LangChain's ecosystem — expect to read source
- ✗The rename from AutoGen split the community; some tutorials still target the old package
- ✗No first-party observability — pair with Langfuse, AgentOps, or Phoenix
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