A agentindex
Comparison

DSPy vs LangChain

A like-for-like, spec-level comparison. Both entries are verified against their docs and repo.

DSPy

Declarative, programmable prompt programming from Stanford.

  • + Compiles and optimizes prompts instead of hand-writing them
  • + Strong for repeatable, measurable prompt engineering
  • − Different mental model from typical agent frameworks
  • − Smaller ecosystem of tool integrations

LangChain

The broad framework for LLM applications and agents.

  • + Largest ecosystem of integrations
  • + Mature and battle-tested
  • − Broad, sometimes leaky abstractions
  • − Agent orchestration has moved to LangGraph
Spec DSPy LangChain
Role Agent framework Agent framework
Tags agent-framework, library agent-framework, library, orchestration
License MIT MIT
Open source Yes Yes
Self-hostable Yes Yes
MCP support No Yes
Pricing free free
Starting price BYOK usage cost BYOK usage cost
Models byok byok
Languages python python, typescript
GitHub stars 35.5k 140.3k
Last activity 2026-06-25 2026-06-26