Build stateful agent flows with branching and checkpoints.
Use LangGraph when an agent needs state, approvals, or retryable steps.
Check if this matches what you need right now.
Look at price and setup together.
Agent products with approval steps
If your workflow is already clear, keep this on your shortlist.
Best for workflows that cannot stay linear from start to finish.
LangGraph is designed for more explicit control than a simple chain can offer. It works well when you need state, review steps, recoverable execution, or multi-step agent logic.
Use LangChain when one workflow needs to coordinate models, tools, and context.
Use LlamaIndex when your product depends on search, documents, or private knowledge.
PydanticAI is designed for Python teams that want structured outputs and predictable agent behavior.
CrewAI lets teams model agents as specialists that collaborate on a shared outcome.
How to move from a promising AI demo to a workflow you can actually operate.
A simple way to compare agent tools before you commit to one.
A plain-language guide to telling an AI agent apart from a normal chatbot, and deciding whether you need one now or later.
If you are still learning what AI is useful for, stay with finished apps. API choice only becomes relevant once AI has to fit inside your own system or repeat at scale.
A plain-language guide to telling an AI agent apart from a normal chatbot, and deciding whether you need one now or later.
If you are still learning what AI is useful for, stay with finished apps. API choice only becomes relevant once AI has to fit inside your own system or repeat at scale.