CrewAI vs AutoGen vs MetaGPT: Multi-agent frameworks compared.

Briefing

If you've decided your team needs more than a single chatbot answering questions, you've hit the question everyone hits next: which framework do you build on? Three names come up again and again, CrewAI, AutoGen, and MetaGPT. They're all real, all widely used, and all designed to make several AI agents work together instead of one model going it alone (Presenc AI, Multi-Agent Orchestration Frameworks 2026).

Here's the catch. They don't just differ in syntax. They disagree about what a "team of agents" even is. One treats it like staff with job titles. One treats it like a group chat. One treats it like running a small software company. Pick the wrong mental model for your problem and you'll spend weeks fighting the tool instead of using it.

For an Australian business team, the decision isn't academic. It shapes how fast you ship, how much your developers need to learn, and whether the thing you build can actually be handed to a junior six months later. So before the code, it's worth understanding the worldview behind each one.

The rest of this is the technical breakdown, how each framework thinks, where it's strong, where it falls down, and how to match one to the work in front of you.

Philosophy Comparison

CrewAI: Roles and Tasks

CrewAI asks you to think like a manager building a team with defined roles. You create agents and give each one a role, a goal, and a backstory. You write tasks with a description and the output you expect back. Then you bundle agents and tasks into a crew and tell it how to run (crewAIInc/crewAI GitHub repo).

from crewai import Agent, Task, Crew

researcher = Agent(role='Researcher', goal='Find information'...)
writer = Agent(role='Writer', goal='Create content'...)

task = Task(description='Research and write about AI trends'...)
crew = Crew(agents=[researcher, writer], tasks=[task], process=Process.sequential)
crew.kickoff()

Strengths

• Simplest API: Three concepts, agents, tasks, crews, cover most of what you'll want to do
• Readable code: The structure matches how people already think about teams, so the code explains itself
• Flexible processes: Run work sequentially, hierarchically, or by consensus
• Rich ecosystem: It works with LangChain LLM components and plugs into Mem0 for memory, though it's worth knowing CrewAI is built from scratch and is independent of LangChain rather than sitting on top of it (IBM, What is crewAI?)
• Best documentation: The guides and examples are thorough

Weaknesses

• Weaker at heavy code generation
• No built-in way to bring a human into the loop mid-run
• The simpler process model puts a ceiling on advanced orchestration

AutoGen: Conversational Agents

AutoGen makes conversation the main event. Agents talk to each other, and the answer emerges from the back-and-forth. Code execution is baked in, agents write code and run it as part of the same dialogue (microsoft/autogen GitHub repo).

from autogen import AssistantAgent, UserProxyAgent

assistant = AssistantAgent("coder", llm_config=...)
user = UserProxyAgent("user", code_execution_config={"work_dir": "coding"})

user.initiate_chat(assistant, message="Plot the Fibonacci sequence")
# The assistant writes code, the user proxy executes it, they iterate

Strengths

• Code execution: Writing and running code is a first-class feature, not a bolt-on
• Human-in-the-loop: An agent can stop and ask a person for input at any point
• Flexible conversation patterns: Two agents, group chat, hierarchical setups, or your own custom shape
• Microsoft ecosystem: Deep Azure integration and enterprise support behind it (Microsoft AutoGen, Multi-agent Conversation Framework docs)
• Mature framework: One of the earliest multi-agent frameworks, and it's been put through its paces

Weaknesses

• A steeper climb than CrewAI
• A conversation-driven model can be harder to reason about when something goes wrong
• Less natural fit for work that isn't really a conversation

MetaGPT: The Software Company

MetaGPT runs a whole software shop in miniature. A product manager writes the PRD, an architect designs the system, engineers write the code, QA tests it, and DevOps ships it (FoundationAgents/MetaGPT GitHub repo). The agents pass structured documents to each other, PRDs, system designs, class diagrams, API specs, implementation code, unit tests, rather than chatting their way to an answer (MetaGPT paper (arXiv 2308.00352)).

Strengths

• End-to-end software development: It goes from requirements all the way to deployment
• High code quality: What it produces tends to come with tests, docs, and type hints
• Structured process: Standard operating procedures keep the output consistent
• Human review gates: People sign off at the key milestones
• Best for software: Hard to beat when you want a complete application generated

Weaknesses

• The steepest learning curve of the three
• Far too much machinery for a small task
• The software-company metaphor boxes you in if your problem isn't software
• Less flexible than CrewAI or AutoGen for general work

Performance Comparison

The figures below are rough author estimates from running a standard exercise, research a topic, write an article, review the quality. They aren't from a published benchmark with a documented method, so treat them as directional rather than measured. The broad ordering (CrewAI lightest, MetaGPT heaviest) lines up with general consensus.

CrewAI: Reportedly the fastest to set up, around 10 minutes. Solid output. The nicest developer experience of the three.

AutoGen: A middling setup, said to be roughly 20 minutes. Best output on code-heavy tasks, and the most flexible.

MetaGPT: The longest to stand up, on the order of 30 minutes. The highest code quality, but overkill if all you want is an article.

When to Choose Which

Choose CrewAI when:

• You're new to multi-agent systems
• You want a simple, intuitive API
• Your tasks are general-purpose, research, content, analysis
• You want the richest ecosystem integration
• Your team members come from a mix of technical backgrounds

Choose AutoGen when:

• Running code is central to the workflow
• You want a person involved throughout the process
• You need complex conversation patterns
• You're already in the Microsoft ecosystem
• You're building data analysis or scientific computing tools

Choose MetaGPT when:

• You're building software applications
• You want the full run from requirements to deployment
• Code quality and documentation matter a lot
• You have the expertise to configure the SOPs
• The software-company metaphor genuinely fits what you're doing

The Convergence

The three are borrowing from each other. CrewAI is improving its code execution. MetaGPT is reaching beyond software. AutoGen's direction is less clear-cut than it once was: reports suggest Microsoft moved it toward maintenance mode in 2026 in favour of the broader Microsoft Agent Framework, so the old "AutoGen is just getting simpler" story doesn't quite hold anymore. The gaps are narrowing, but the underlying philosophies still differ.

The upside for teams: moving between them is getting easier. They lean on the same building blocks, LLM calls, tool use, memory, and plug into much of the same ecosystem, from LangChain components to Mem0 and the usual LLM providers. Learn the patterns in one and the others won't feel foreign.

With three strong options on the table, there's a sensible framework for most teams and most jobs. The work is matching the tool's worldview to yours.