A agentindex
Comparison

LangGraph vs Semantic Kernel

A like-for-like, spec-level comparison. Both entries are verified against their docs and repo.

LangGraph

Graph-based agent orchestration from LangChain.

  • + Explicit state graph suits complex workflows
  • + Checkpointing enables human-in-the-loop
  • − Steep learning curve
  • − Tied to the LangChain ecosystem

Semantic Kernel

Microsoft's SDK for enterprise AI orchestration.

  • + Strong .NET and Java story for enterprise
  • + Planner abstraction for tool orchestration
  • − Enterprise-flavored, less hacker-friendly
  • − Concept-heavy docs
Spec LangGraph Semantic Kernel
Category framework framework
License MIT MIT
Open source Yes Yes
Self-hostable Yes Yes
MCP support Yes Yes
Pricing free free
Starting price BYOK usage cost BYOK usage cost
Models claude, gpt, gemini, byok gpt, claude, byok
Languages python, typescript csharp, python, java
GitHub stars 35.7k 28.2k
Last activity 2026-06-25 2026-06-25