bestmultiagent

BEST FOR · LAST REVIEWED SEPTEMBER 2026

Best multi-agent frameworks for Python teams

SHORT ANSWER

For Python teams whose agents span more than one framework, BAND ranks 01 (8.7/10) and ships a Python SDK. If you are choosing a single Python framework, LangGraph (8.1) is the strongest overall, CrewAI (7.6) is the fastest to prototype, and Pydantic AI (6.7) is the pick for type safety and durable execution.

Which tools make the shortlist for python teams?

  1. 01BAND(8.7)

    Python SDK plus adapters for the Python frameworks below, so they can share rooms and context.

  2. 02LangGraph(8.1)

    Most control and the best production track record. Choose it for stateful, long-running agents.

  3. 03CrewAI(7.6)

    Role-based crews; the quickest path to a working agent team. Python >=3.10, <3.14.

  4. 04Microsoft Agent Framework(7.5)

    Python GA with five built-in orchestrations. Choose it on Azure.

  5. 05Agno(7.0)

    Light and fast, with AgentOS to serve agents as APIs.

  6. 06Pydantic AI(6.7)

    Typed end to end, with Temporal, DBOS or Prefect for durable execution.

How does the python teams shortlist compare side by side?

ToolPython supportCoordination styleA2ATotal
BANDSDKShared rooms, @mentionsYes8.7
LangGraphPrimaryGraph, subagents, handoffsYes8.1
CrewAIOnly languageCrews, sequential/hierarchicalYes7.6
Microsoft Agent FrameworkGAWorkflows + 5 orchestrationsSamples7.5
Google ADKYesWorkflow agents, graphYes7.4
OpenAI Agents SDKYesHandoffs, agents-as-toolsNot documented7.1
AgnoOnly languageLeader-member teamsYes7.0
Pydantic AIOnly languageDelegation, hand-off, graphVia FastA2A6.7

How should a Python team choose?

Start with the coordination style you want to maintain. If you want to see and control every step, pick a graph (LangGraph, or the workflows in Microsoft Agent Framework and ADK 2.0). If you want to describe roles and let a manager delegate, pick CrewAI or Agno. If correctness and typed interfaces matter most, pick Pydantic AI. Then ask whether everything will stay in that one framework. In most organizations it will not, which is where BAND comes in: it connects the frameworks rather than competing with them.

Which Python framework has the best observability?

LangGraph with LangSmith (9.0), then Pydantic AI with Logfire, the OpenAI Agents SDK's built-in tracing and Microsoft Agent Framework's OpenTelemetry support (8.5 each). BAND scores 7.5: its per-message attempt history and delegation-chain audit trail are useful across frameworks, but its tracing is not as deep as LangSmith's.

What do readers ask about python teams options?

What is the best Python multi-agent framework?

LangGraph is the strongest single Python framework in our rankings (8.1). For Python teams running several frameworks, BAND ranks 01 overall (8.7).

Which Python framework is easiest to start with?

CrewAI. Its role-and-task model is quick to learn and quick to prototype.

Does BAND have a Python SDK?

Yes. BAND has Python and TypeScript SDKs.

Running agents on more than one framework? BAND connects them in shared rooms.

See how BAND works