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Pricing sourced from AG2 (AutoGen Evolved) · Last verified March 2026
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View Full Features →AG2 is the community-governed evolution of Microsoft's original AutoGen project. In late 2024, the original AutoGen creators forked the project as AG2 under the ag2ai organization, continuing the proven conversable-agent architecture from AutoGen 0.2.x. Meanwhile, Microsoft launched a separate AutoGen v0.4 with a completely different event-driven/actor-based architecture that breaks backward compatibility. AG2 preserves API compatibility with AutoGen 0.2.x — most existing code works by simply changing the import — while adding new features like AgentOS, cross-framework interoperability, and swarm orchestration. Both projects are open-source under Apache 2.0, but they have diverged significantly in design philosophy and governance.
Yes. The AG2 framework is released under the Apache 2.0 license, which permits commercial use, modification, and distribution without licensing fees or royalties. You can build and sell products using AG2 without paying AG2 anything. Your costs are limited to the LLM API fees from your chosen provider (OpenAI, Anthropic, etc.) and any infrastructure costs for hosting your agents. The paid AgentOS tier is optional and only needed if you want managed hosting, enterprise SSO, persistent state management, and other production-grade features.
Yes, AG2 is a Python-first framework that requires intermediate programming knowledge. You will write Python code to define agents, configure conversation patterns, register tools, and set up workflows. There is no visual builder, drag-and-drop interface, or low-code option in the open-source framework. AG2 Studio (part of the enterprise AgentOS offering) aims to provide a visual designer, but the core framework is code-only. If you are not comfortable writing Python, consider CrewAI for a slightly simpler API or a no-code platform like Relevance AI.
AG2 offers more orchestration flexibility with four distinct conversation patterns (two-agent, sequential, group chat, nested chat) compared to CrewAI's sequential and hierarchical process model. AG2's conversable-agent architecture lets agents engage in natural back-and-forth dialogue, while CrewAI uses a more structured role-and-task abstraction. AG2 includes built-in Docker-sandboxed code execution and a native UserProxyAgent for human-in-the-loop, whereas CrewAI requires external setup for code execution. However, CrewAI is faster to get started with for straightforward role-based agent teams due to its more opinionated design. AG2 is the better choice when you need complex conversation flows, cross-framework interoperability, or fine-grained control over agent interactions.
Yes. AG2 has a robust tool registration system where any Python function can be registered as an agent-callable tool using decorators. The framework automatically generates the tool schema from the function signature and docstring, which is passed to the LLM for function calling. Tools can be registered to specific agents for calling (via register_for_llm) and specific agents for execution (via register_for_execution), giving you fine-grained control. AG2 also supports LangChain tool adapters for interoperability and MCP integration for connecting to external tool servers.
Multi-agent conversations can generate significant LLM API costs because each agent interaction involves token-consuming API calls. Best practices include: setting max_turns or max_consecutive_auto_reply limits to prevent runaway conversations; using cheaper models (GPT-3.5, Haiku) for simple routing agents while reserving expensive models (GPT-4, Opus) for complex reasoning; implementing clear termination conditions so conversations end when goals are met; monitoring token usage via the built-in usage_summary tracking; using caching to avoid repeated identical LLM calls; and starting with two-agent patterns before scaling to larger group chats to understand cost profiles.
AI builders and operators use AG2 (AutoGen Evolved) to streamline their workflow.
Try AG2 (AutoGen Evolved) Now →Open-source Python framework that orchestrates autonomous AI agents collaborating as teams to accomplish complex workflows. Define agents with specific roles and goals, then organize them into crews that execute sequential or parallel tasks. Agents delegate work, share context, and complete multi-step processes like market research, content creation, and data analysis. Supports 100+ LLM providers through LiteLLM integration and includes memory systems for agent learning. Features 48K+ GitHub stars with active community.
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