Usual fit CrewAI Role-based agent teams Choose it if The task maps cleanly to roles, such as research, draft and reviewYou want a working prototype quicklyThe steps run in a mostly fixed order Watch out for: Less fine-grained control over branching and recovery, so complex flows can outgrow it.
Usual fit LangGraph Stateful graphs you control Choose it if You need loops, branches, retries or human approval stepsA run must survive failures and resume where it stoppedYou want an exact record of state at every step Watch out for: More design work up front. It pays off when the process has to be predictable.
Usual fit AutoGen-style conversations Agents that talk it through Choose it if The value comes from agents challenging and refining each otherThe work is open-ended research or analysisA person reads the result before anything acts Watch out for: Outputs are harder to make deterministic, so we add evaluation and a clear stop rule.