AutoGen vs LlamaIndex

Detailed side-by-side comparison to help you choose the right tool

AutoGen

Agent Frameworks

Microsoft framework for conversational multi-agent systems and tool use.

Starting Price

Custom

LlamaIndex

Orchestration & Chains

Data framework for RAG pipelines, indexing, and agent retrieval.

Starting Price

Custom

Feature Comparison

FeatureAutoGenLlamaIndex
CategoryAgent FrameworksOrchestration & Chains
Pricing Plans11 tiers19 tiers
Starting Price
Key Features
  • Workflow Runtime
  • Tool and API Connectivity
  • State and Context Handling
  • Workflow Runtime
  • Tool and API Connectivity
  • State and Context Handling

AutoGen - Pros & Cons

Pros

  • Backed by Microsoft Research with strong ongoing development
  • Fully open-source with permissive licensing
  • Flexible conversational agent patterns for diverse use cases
  • Strong support for human-in-the-loop workflows
  • Multi-language code execution built into agent loops

Cons

  • Complex configuration for advanced multi-agent setups
  • Documentation can lag behind rapid development cycles
  • Requires solid Python knowledge to customize effectively
  • Token costs can escalate quickly with multi-turn agent conversations

LlamaIndex - Pros & Cons

Pros

  • Best-in-class framework for RAG and data-augmented LLM applications
  • Extensive data connector library (LlamaHub) for 100+ sources
  • Sophisticated indexing strategies for different retrieval needs
  • Open-source with optional managed cloud service
  • Strong focus on production-grade retrieval quality

Cons

  • Primarily retrieval-focused — less suited for general agent orchestration
  • Index creation can be slow and resource-intensive for large datasets
  • Learning curve for choosing the right index type and retrieval strategy
  • Cloud service pricing can add up for high-volume applications

Ready to Choose?

Read the full reviews to make an informed decision