Google ADK vs LlamaIndex

Pick two tools from the same category to compare side-by-side.

	Google ADK Open-source, code-first toolkit from Google for building, evaluating, and deploying AI agents.	LlamaIndex Data framework for connecting LLMs to private data, with RAG, agents, and event-driven workflows.
Category	framework	framework
Vendor type	hybrid	hybrid
Pricing	freemium	freemium
Strengths	+ Code-first design with explicit control over orchestration and tools + Native multi-agent composition and delegation + Built-in evaluation and local dev CLI (adk run, adk web) + Backed by Google with paths to managed Vertex AI deployment	+ Extensive data connectors and RAG tooling + Strong document parsing and ingestion (LlamaParse/LlamaCloud) + Agents and event-driven workflows built in + Large ecosystem and integrations
Tradeoffs	− Newer framework with a smaller community than longer-established options − Strongest ergonomics within the Google/Gemini and Cloud ecosystem	− Broad API surface can be complex to navigate − Heritage is RAG-centric rather than agent-first − Frequent API changes across versions
Used in stacks	0	0