CrewAI

CrewAI is a Python framework for orchestrating teams of AI agents, each with defined roles, goals, and tools, working together on shared tasks. A crew might include a Researcher agent, a Writer agent, and an Editor agent all collaborating on a single document. The framework is open-source and free to self-host; you pay only for the LLM API calls. CrewAI Enterprise exists at custom pricing for managed deployment.

This is the go-to choice for developers building AI-powered products where multiple specialized agents need to coordinate. Content pipelines, research automation, customer support systems, and code review workflows are all strong fits. The abstraction is elegant — defining crews feels natural for anyone who thinks in terms of team roles. By 2025 the framework is production-battle-tested with a large community.

The learning curve requires Python comfort and understanding of agent design patterns. Non-technical users are better served by visual tools like Relevance AI. Also factor in LLM token costs, which can compound quickly with multiple agents running in parallel.