# DSPy vs LangChain — Fit & Features

Canonical: https://trutool.co/compare/dspy-vs-langchain
Author: Snehil (https://trutool.co/authors/snehil)

Compare DSPy and LangChain by use case, features, limitations, and evaluation questions.

## Compare fit, features, and limitations

### DSPy
Program and optimize language model pipelines with structured modules.
Best fit: Developers composing agents, structured model outputs, and tool workflows.
- LM programs
- Pipeline optimization
- Evaluation workflows
Before you choose: Check licensing, provider compatibility, maintenance, and tool permissions. Test failure recovery before enabling agent actions.
Pricing: https://dspy.ai/current/
- [Read DSPy profile](https://trutool.co/tools/dspy): Read DSPy profile

### LangChain
Tools for building AI applications, agents, and retrieval workflows.
Best fit: Developers building and evaluating custom agents.
- Tools for building AI applications, agents, and retrieval workflows
Before you choose: Check licensing, maintenance status, supported providers, and hosting or inference costs.
Pricing: https://www.langchain.com/
- [Read LangChain profile](https://trutool.co/tools/langchain): Read LangChain profile