Semantic Kernel Alternatives
Microsoft's SDK for building and orchestrating AI agents in .NET, Python, and Java
Semantic Kernel is a lightweight, model-agnostic SDK from Microsoft for integrating LLMs into applications.
Explore 71 alternatives to Semantic Kernel across 2 categories. Each tool listed below shares at least one category with Semantic Kernel.
Top Semantic Kernel alternatives at a glance
- Langroid. Multi-agent LLM framework using message-based task delegation inspired by the Actor model
- n8n. AI workflow automation with 400+ integrations and native AI agents
- AutoGen. Microsoft's framework for building multi-agent AI applications with event-driven messaging
- CrewAI. Framework for orchestrating role-playing, autonomous AI agents.
- LangGraph. Low-level framework for building stateful, long-running AI agents with graph-based orchestration
🕵️♀️ Agents
Mastra
TypeScript-first AI framework for building agents, RAG pipelines, and workflows
Letta
Framework for building stateful AI agents with persistent memory, formerly MemGPT
Google ADK
Open-source agent development kit from Google for building multi-agent systems
AG2
Community-driven multi-agent framework forked from AutoGen with backward-compatible API
Dust
The operating system for AI agents
Burr
Build stateful AI agents and applications as state machines, with a built-in tracing UI
Tura
Open-source local coding agent that turns intent into verified repository changes
Fixie
The fastest way to build conversational AI agents
Superagent
Prototype and deploy agents powered by large language models.
🏗️ Frameworks & Stacks
LangChain
LangChain gives developers a framework to construct LLM‑powered apps easily.
llmkit
One LLM client API for 20+ providers, in Go, TypeScript, Python and Rust
Mastra
TypeScript-first AI framework for building agents, RAG pipelines, and workflows
Google ADK
Open-source agent development kit from Google for building multi-agent systems
Burr
Build stateful AI agents and applications as state machines, with a built-in tracing UI
phidata
Build an AI App in minutes using pre-built templates.
Ollama
Run large language models locally with a single command
llama.cpp
LLM inference in C/C++ with broad hardware support and aggressive quantization
vLLM
High-throughput LLM inference engine with PagedAttention for efficient GPU memory usage
GPT4All
Desktop app and Python SDK for running open-source LLMs locally on any device
Jan
Open-source desktop app for running LLMs locally with a clean GUI
CC Switch
Open-source desktop manager and local router for AI coding tools
Frequently asked questions
What are the best alternatives to Semantic Kernel?
Based on category overlap and popularity, the top alternatives to Semantic Kernel include: Langroid (Multi-agent LLM framework using message-based task delegation inspired by the...); n8n (AI workflow automation with 400+ integrations and native AI agents); AutoGen (Microsoft's framework for building multi-agent AI applications with event-dri...); CrewAI (Framework for orchestrating role-playing, autonomous AI agents.); LangGraph (Low-level framework for building stateful, long-running AI agents with graph-...). See all 71 alternatives compared on this page.
Is there a free alternative to Semantic Kernel?
Yes. 64 alternatives to Semantic Kernel offer a free tier or free trial: Langroid, n8n, AutoGen, LangGraph, Composio, Smolagents, and more. Use the comparison above to find the best fit for your use case.
Are there open-source alternatives to Semantic Kernel?
Yes. 53 of the 71 alternatives to Semantic Kernel listed here are open source: Langroid, AutoGen, CrewAI, LangGraph, Composio, Smolagents, and more. Open-source tools can be self-hosted for full control over data and infrastructure.
What is Semantic Kernel?
Semantic Kernel is a lightweight, model-agnostic SDK from Microsoft for integrating LLMs into applications. It supports C#/.NET, Python, and Java, connecting to OpenAI, Azure OpenAI, Hugging Face, NVIDIA, and other providers through plugins and connectors. A key feature is its planning capability... See 71 alternatives to Semantic Kernel across 2 categories.
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