Different frameworks suit different requirements:
LangGraph provides the most sophisticated orchestration for complex stateful applications. Its graph-based approach handles multi-step workflows with branching, cycles, and human-in-the-loop patterns. The go-to choice for serious agentic applications.
LangChain remains valuable for chains and simpler agent patterns. Good documentation, active development, and broad tool integrations.
CrewAI focuses on multi-agent systems where different agents handle different roles. Strong for scenarios requiring diverse expertise or parallel work streams.
AWS Strands provides production-grade agent infrastructure within the AWS ecosystem. Integrates with Bedrock AgentCore for enterprise deployment.
Semantic Kernel is Microsoft's framework, integrating well with Azure services. Suited for organisations deep in Microsoft's ecosystem.
Custom implementations sometimes make more sense than frameworks. When requirements are specific or frameworks add unnecessary complexity, we build directly on model APIs.