Google Agent Development Kit vs LangChain
Side-by-side comparison of features, pricing, and ratings
At a glance
| Dimension | Google Agent Development Kit | LangChain |
|---|---|---|
| Pricing | Free (open source) | Freemium (paid tiers for LangSmith) |
| Primary Focus | Framework for building multi-agent systems | Agent observability, evaluation, and production deployment |
| Language Support | Python, TypeScript, Go, Java, Kotlin | Python, TypeScript, Go, Java |
| Model Support | Gemini, Gemma, Claude, Ollama, vLLM, LiteLLM | OpenAI, Anthropic, Google AI, many LLMs |
| Key Recent Feature | Graph workflows with deterministic logic (ADK 2.0) | Prompt caching with Deep Agents |
| Best For | Enterprise multi-agent orchestration on Google Cloud | Teams needing deep debugging and evaluation |
Choose LangChain if you need robust observability and evaluation for complex agents, especially if you're already using LangChain frameworks. Choose Google ADK if you're building multi-agent systems on Google Cloud and want a free, open-source framework with deterministic graph workflows.
Google's MIT-licensed open-source framework for building production-grade AI agents across five languages.
Visit WebsiteWho should pick which
- Enterprise team building multi-agent system on Google CloudPick: Google Agent Development Kit
ADK provides native integrations with Google Cloud services, graph workflows, and multi-language SDKs ideal for complex orchestration.
- Team needing deep agent observability and debuggingPick: LangChain
LangSmith offers detailed tracing, evaluation, and human-in-the-loop features essential for troubleshooting complex agents.
- Developer prototyping with KotlinPick: Google Agent Development Kit
ADK supports Kotlin, unlike LangChain which lacks Kotlin SDK.
- Solo founder building production agent with low budgetPick: Google Agent Development Kit
ADK is free and open source, reducing licensing costs while providing production capabilities.
- Company automating internal tasks across orgPick: LangChain
LangChain's Fleet agents are designed for company-wide task automation with checkpointing and human-in-the-loop.
Frequently Asked Questions
Google Agent Development Kit vs LangChain: which should you choose?
Choose LangChain if you need robust observability and evaluation for complex agents, especially if you're already using LangChain frameworks. Choose Google ADK if you're building multi-agent systems on Google Cloud and want a free, open-source framework with deterministic graph workflows.
Which tool is cheaper?
Google ADK is entirely free and open source; LangChain is freemium with paid tiers for advanced features.
Does ADK support multi-agent orchestration?
Yes, ADK 2.0 introduces graph-based workflows and collaborative multi-agent orchestration.
Can LangChain be used without LangSmith?
Yes, LangChain itself is open source, but LangSmith adds observability and evaluation.
Which tool is better for debugging agents?
LangChain's LangSmith provides detailed traces, autonomous issue detection, and root cause analysis.
Does ADK support models other than Google's?
Yes, ADK supports Claude, Ollama, vLLM, LiteLLM, and more via integrations.
Can I deploy LangChain agents on Google Cloud?
Yes, LangChain can be deployed on any cloud including GCP, but ADK offers tighter integration.
Which framework has more community plugins?
LangChain has a larger ecosystem of integrations and community-contributed tools.
Is LATEST NEWS reflected in features?
Yes, ADK 2.0 GA with graph workflows and LangChain's prompt caching are included.
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Last reviewed: May 12, 2026