Semantic Kernel
Microsoft's orchestration framework for building AI agents with LLMs
Open-source SDK that connects large language models to your code and data. Enables developers to build AI agents that plan, reason, and execute tasks across multiple plugins and services.
Semantic Kernel provides a unified interface for integrating GPT, Claude, and other LLMs into applications. It handles prompt templating, function calling, memory management, and orchestration of AI workflows. Supports C# and Python with built-in connectors for Azure services, making it particularly suited for enterprise environments.
Pros
- Integrate multiple LLM providers through a single interface
- Define custom plugins and functions for AI agents to call
- Built-in memory and context management for multi-turn interactions
- Strong Microsoft ecosystem integration (Azure, Copilot)
- Active open-source development with regular updates
Cons
- Steeper learning curve compared to simpler LLM libraries
- C# support more mature than Python implementation
- Requires managing your own LLM API keys and costs
Best For
Enterprise developers building production AI agents that need structured orchestration, multiple LLM support, and integration with existing enterprise systems.
Pricing
Free Forever
- Core features
- Email support
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