No free plan. The cheapest way in is Open Source Framework at Contact for pricing. Consider free alternatives in the ai agent builders category if budget is tight.
No. While Azure OpenAI has the deepest integration, there are official connectors for OpenAI, Google Gemini, Hugging Face, Mistral, and Ollama. The IChatCompletionService interface lets you write custom connectors for any provider. The framework is provider-agnostic by design despite Microsoft's Azure emphasis.
If you're in a .NET-first organization or need tight Azure integration, Semantic Kernel is the clear choice. For pure Python projects, LangChain has a larger ecosystem, more integrations, and a bigger community. Semantic Kernel's Python SDK is capable but typically 2-3 months behind the C# SDK in features.
Semantic Kernel supports loading prompt templates from YAML files with metadata. Store these in version control alongside your code. Each template can specify model-specific settings for different LLM providers. The framework supports runtime template compilation with Handlebars syntax.
Yes, though it's not its primary strength. The Agent Framework (experimental) supports creating multiple agents with different personalities that can participate in group chats. For complex multi-agent orchestration, consider pairing Semantic Kernel's plugin system with a dedicated agent framework or using the Process Framework.
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Last verified March 2026