Semantic Kernelvs
LangGraph


LangGraph: Focused agent orchestration framework
Overview
Semantic Kernel is a model-agnostic SDK that empowers developers to integrate large language models into applications through a flexible orchestration layer. The framework supports OpenAI, Azure OpenAI, Hugging Face, Nvidia, and other LLM providers while offering modular AI agent building with tools, memory, and planning capabilities. Developers can construct everything from simple chatbots to complex multi-agent workflows with plugin ecosystem support through native code, prompt templates, OpenAPI specifications, or Model Context Protocol. With enterprise-grade observability, security, and stable APIs, Semantic Kernel integrates seamlessly with vector databases, local models via Ollama, and provides multimodal support for text, vision, and audio inputs.
The honest half
Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Semantic Kernel.
Cross-shopped
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LangGraph: Focused agent orchestration framework


AutoGen: Microsoft's multi-agent framework


LangChain: Python-focused LLM orchestration framework
Pricing
Taken from the vendor's own pricing page. Prices move, so check before you buy.
Open Source
Free
Capabilities
Multi-model support
Works with OpenAI, Azure OpenAI, Hugging Face, and other providers
Agent framework
Build modular AI agents with tools, memory, planning
Multi-agent systems
Orchestrate workflows with collaborating specialist agents
Plugin ecosystem
Extend through code, prompts, OpenAPI, or MCP
Vector database integration
Azure AI Search, Elasticsearch, Chroma support
Multimodal support
Process text, vision, and audio inputs
Local model support
Compatible with Ollama, LMStudio, ONNX
Enterprise observability
Built-in monitoring and debugging tools
Answered, with sources
Each answer names the page it came from, so you can check it rather than take our word for it.
Semantic Kernel supports OpenAI, Azure OpenAI, Hugging Face, Nvidia, and other providers through extensible model implementations.
SourceYes. Semantic Kernel supports local models through Ollama, LMStudio, and ONNX for complete data control and offline operation.
SourceYes. Semantic Kernel is MIT-licensed open source and completely free. You only pay for external LLM APIs you use.
SourceTimeline
Semantic Kernel initial release by Microsoft
SourceKeep looking
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Softwr does not host reviews and shows no star rating for Semantic Kernel, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.
What people switch to, and what they give up
Every tier, and where the cost actually lands
Put it head to head with anything we hold
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