Researchers, developers and the technically curious who want to test multi-agent deliberation: multi-round problem solving, expert simulation, generate-and-critique. You need to code in Python.
Price verified on 2026-10-29.
AutoGen (github.com/microsoft/autogen), Microsoft's open-source framework for getting several agents to converse: in a group discussion (GroupChat), the agents answer each other, critique each other and converge on a solution, with or without a human in the loop. The project is now part of the Microsoft Agent Framework ecosystem, and the community keeps the AG2 branch alive.
Trigger: You start a discussion between your agents — hands the floor around among the agents, raises objections and stops the discussion when the end criterion is reached, and you get a solution sifted through several points of view, with the full debate as a trace.
Not documented in the official sources: Data, Documented limits.
Official sources: github.com — verified on November 1, 2026.
Free open source; you pay for the model calls used by the agents — a multi-round debate costs several times a single answer. Free open source software (Microsoft), with no paid plan; only the models' API calls are on you. Price verified on October 29, 2026.
Yes. Free open source software (Microsoft), with no paid plan; only the models' API calls are on you.
Level: Advanced. Setup takes 4 steps; the first: Install AutoGen (or AG2) in Python and configure the keys of the models you want to have talk to each other.
Without a strict stopping condition, two polite agents can bounce the ball back and forth indefinitely — and bill you at every round. Cap the rounds and the budget, and keep a human in the loop for subjects that matter.
I want a solid second opinion before a big decision
Free software (public repository, no open-source license); you pay for the model calls (about 2 to 3 times the cost of asking a single model).
I want a team of agents that splits up a big job
$0 for the open-source framework and the basic platform (50 runs/month); enterprise platform by quote, plus the cost of the model calls.
I want a custom agent workflow, with every step under control
Free open-source library; you pay for the model calls, and for LangSmith if you take it (free to start, then $39/user/month).
I want to plug my own tools and data into my agents
Free: it's an open standard, not a product; each tool you plug in keeps its own pricing.
I want agents that run at home, without sending my data to the cloud
$0: the software and the open models are free; the real cost is your computer (a good graphics card makes the models fast and pleasant).
Profile updated on November 1, 2026 — see what's new at the Directory.