CrewAI
A Python framework for orchestrating role-playing AI agents as collaborating 'crews', plus event-driven flows.
CrewAI orchestrates multiple agents as a 'crew' with roles, goals, and tasks — a high-level, fast-to-start abstraction for collaborative multi-agent work. It also offers Flows for event-driven, more deterministic control when you need it. Standalone and independent of LangChain.
CrewAI is a Python framework for building multi-agent systems around an intuitive metaphor: a crew of agents, each with a role, a goal, and a backstory, working through tasks toward a shared objective. That high-level abstraction makes it one of the fastest ways to stand up collaborative multi-agent workflows — you describe who does what, and CrewAI handles the coordination.
It is aimed at developers who want role-based multi-agent orchestration without wiring a state graph by hand. For cases that need tighter, event-driven control, CrewAI also provides Flows, a more deterministic execution model you can combine with crews.
Highlights
- Roles, tasks, crews — define agents by role and goal, assign tasks, and let the crew collaborate (sequential or hierarchical processes).
- Flows — event-driven orchestration for deterministic, branching control when autonomy isn't what you want.
- Tools & integrations — give agents tools (search, code, custom functions) and connect external systems.
- Standalone — built independently of LangChain, with its own lean core.
- Memory & delegation — agents can retain context and delegate subtasks to one another.
In an AI-assisted workflow
from crewai import Agent, Task, Crew
researcher = Agent(role="Researcher", goal="Find sources", backstory="...")
writer = Agent(role="Writer", goal="Draft the brief", backstory="...")
crew = Crew(agents=[researcher, writer], tasks=[research_task, write_task])
crew.kickoff()TIP
CrewAI is great for getting a collaborative multi-agent prototype running fast. If you later need explicit state, checkpointing, and resumability, compare LangGraph — and use Flows when you want determinism over agent autonomy.
Good to know
CrewAI is open source (MIT) and free to self-host; a commercial enterprise platform adds hosted deployment, monitoring, and management. You bring your own model provider. See Which Agent Framework in 2026? for where it fits versus the alternatives.
Frequently asked questions
- What is CrewAI?
- CrewAI is a Python framework for building multi-agent systems around the metaphor of a crew: agents with a role, a goal, and a backstory working through tasks toward a shared objective, in sequential or hierarchical processes. For tighter, event-driven control it also provides Flows, a more deterministic execution model you can combine with crews.
- Is CrewAI free?
- Yes — CrewAI is open source under MIT and free to self-host; you bring your own model provider. A commercial enterprise platform adds hosted deployment, monitoring, and management.
- CrewAI vs LangGraph?
- CrewAI is one of the fastest ways to stand up a collaborative multi-agent prototype — you describe who does what and it handles the coordination. If you later need explicit state, checkpointing, and resumability, compare LangGraph; within CrewAI, use Flows when you want determinism over agent autonomy.
Related
- LangGraphA low-level library for building stateful, controllable agents as graphs, with checkpointing and human-in-the-loop.
- AutoGen (AG2)A multi-agent conversation framework where agents collaborate via message-passing, with group chat and code execution.
- OpenAI Agents SDKOpenAI's lightweight, open-source framework for agents — handoffs, guardrails, sessions, and built-in tracing.
- Which Agent Framework in 2026? LangGraph vs CrewAI vs AutoGen vs OpenAI Agents SDK vs Claude Agent SDKA decision guide to the major AI agent frameworks — control vs. abstraction, multi-agent models, state and durability, and which fits your project.
- LangGraph vs CrewAI: Agent Frameworks Compared (2026)LangGraph vs CrewAI — explicit state-machine control vs role-based crew abstractions. Which agent framework fits your reliability bar and team.