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smolagents vs Semantic Kernel

smolagentsSemantic Kernel

Bottom line: smolagents for developers wanting minimal frameworks; Semantic Kernel for enterprise .NET development teams.

smolagentssmolagents

A barebones open-source library for agents that think in code

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Semantic KernelSemantic Kernel

Microsoft's enterprise SDK for orchestrating LLMs, plugins, and agents.

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Votes00
PricingFreeFree
CategoryAgent FrameworksAgent Frameworks
Tags
ai-agentsopen-sourcecode-agentshugging-facepython
llm-frameworkagentsopen-sourcemicrosoftdotnet
Best for
  • Developers wanting minimal frameworks
  • Researchers prototyping agents
  • Hugging Face ecosystem users
  • Enterprise .NET development teams
  • Microsoft/Azure-aligned organizations
  • Developers adding AI to existing apps
Pros
  • Extremely small, readable codebase
  • Code-first agent actions
  • Model-agnostic via LiteLLM and Hub
  • Free and fully open source
  • Hugging Face Hub sharing
  • First-class C#/.NET support, rare among AI frameworks
  • Free and open source
  • Enterprise features: type safety, DI, telemetry
  • Multi-language (C#, Python, Java)
  • Backed by Microsoft with clear Azure integration
Cons
  • Minimalism means fewer built-in features
  • No managed hosting or dashboard
  • Limited enterprise tooling
  • Code execution requires sandboxing care
  • Smaller feature set than large frameworks
  • Strategic focus shifting to Microsoft Agent Framework
  • Concepts like planners have changed across versions
  • Python support historically trailed .NET
  • Migration planning needed for long-term projects
  • Less multi-agent focus than AutoGen lineage

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