CrewAI vs Semantic Kernel

CrewAI and Semantic Kernel are both agent frameworks for Python. CrewAI is published by CrewAI and Semantic Kernel by Microsoft. On GitHub, CrewAI has 60,066 stars and Semantic Kernel has 28,694. Both were last active in Oct 2026. The table lines up where they differ (publisher, weekly downloads, category and languages) and has the install commands for both. Everything here comes from the listings' public sources and is refreshed daily. CrewAI describes itself as: Open-source Python framework for multi-agent workflows, with role-based Crews and event-driven Flows. Semantic Kernel: Model-agnostic SDK for building agents and multi-agent systems in Python, .NET and Java; Microsoft names Agent Framework as its successor. Licenses: CrewAI MIT, Semantic Kernel MIT.