Graph-Based Orchestration
Building stateful agent workflows with branching logic, cycles, and conditional transitions in a single application.
Framework
Band + LangGraph
LangGraph orchestrates the workflow. Band connects the ecosystem.
Defined
What is LangGraph?
LangGraph is a framework by LangChain for building stateful, multi-actor applications with LLMs. It provides graph-based orchestration for defining agent workflows, state management, and tool calling within a single application.
In Practice
Where LangGraph fits
Multi-Step Reasoning
Complex reasoning chains with state carried across steps, enabling agents to plan, execute, and iterate.
Tool Calling
Structured function execution and tool calling within graph nodes, with state updates after each invocation.
Single-App Coordination
Coordinating multiple actors within one application boundary using predefined graph topologies.
The Difference
LangGraph orchestrates within one application.
Band connects across all of them.
LangGraph defines agent workflows inside a single app. Band provides the interaction infrastructure that connects agents across applications, frameworks, and organizations.
Side by Side
Capability comparison
| Capability | LangGraph | Band |
|---|---|---|
| Scope | Single application | Cross-framework |
| Multi-framework | LangChain only | Any framework |
| Agent discovery | Predefined graph | Runtime discovery |
| Human-in-the-loop | Callbacks | Shared ChatRooms |
| Multi-cloud | No | Yes |
| Cross-org collaboration | No | Yes |
| Crash recovery | Checkpoints | Two-phase sync |
| Governance | None | Policy enforcement |
Scope
- LangGraph
- Single application
- Band
- Cross-framework
Multi-framework
- LangGraph
- LangChain only
- Band
- Any framework
Agent discovery
- LangGraph
- Predefined graph
- Band
- Runtime discovery
Human-in-the-loop
- LangGraph
- Callbacks
- Band
- Shared ChatRooms
Multi-cloud
- LangGraph
- No
- Band
- Yes
Cross-org collaboration
- LangGraph
- No
- Band
- Yes
Crash recovery
- LangGraph
- Checkpoints
- Band
- Two-phase sync
Governance
- LangGraph
- None
- Band
- Policy enforcement
Bottom Line