A agentindex
Comparison

DSPy vs Haystack (deepset)

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

Haystack (deepset)

Production-grade RAG and agent pipelines from deepset.

  • + Excellent connectors and retrieval pipeline design
  • + Typed, composable pipeline architecture
  • − Smaller agent-orchestration story than LangGraph
  • − Steeper for simple chat use cases
Spec DSPy Haystack (deepset)
Role Agent framework Agent framework
Tags agent-framework, library, persona-solo-builder, persona-platform-engineer agent-framework, library, rag, persona-solo-builder, persona-platform-engineer
License MIT Apache-2.0
Open source Yes Yes
Self-hostable Yes Yes
MCP support No Yes
Pricing free free
Price Free Free
Usage cost BYOK BYOK
Models byok byok
Languages python python
GitHub stars 35.8k 25.8k
Last activity 2026-07-02 2026-07-03