Top Open Source AI Tools
Leading open-source AI frameworks, models, and tools for developers
Development Frameworks
RAG & Agent Frameworks
| Tool | Description | Key Features |
|---|
| LangChain | General purpose framework for RAG and agentic applications | Chains, agents, memory |
| LlamaIndex | Framework for RAG and Agentic RAG applications | Data connectors, indexing |
| AutoGen | Framework for automated agentic applications | Multi-agent conversations |
| CrewAI | Multi-agent orchestration framework | Role-based agents |
| Smolagents | Minimalist AI agent framework by Hugging Face | Lightweight, simple API |
Observability & Monitoring
| Tool | Description | Key Features |
|---|
| Arize Phoenix | Open-source observability for LlamaIndex and RAG | Tracing, evaluation |
| LangFuse | Open-source observability for agents and LLM calls | Self-hosted, analytics |
Utilities & Infrastructure
| Tool | Description | Key Features |
|---|
| LiteLLM | Universal API for LLM deployments | 100+ LLM support |
| ONNX Runtime | Cross-platform ML inference | Optimized performance |
| Transformers.js | JavaScript ML library | Browser & Node.js |
Open Source Models
Large Language Models
| Model | Provider | Key Features |
|---|
| Llama | Meta | Open weights, commercial use |
| Mistral | Mistral AI | Efficient, multilingual |
| DeepSeek | DeepSeek | Deep learning focus |
| Qwen | Alibaba | Large context windows |
Specialized Models
| Model | Purpose | Key Features |
|---|
| Whisper | Speech recognition | Multilingual, robust |
| Stable Diffusion | Image generation | Open weights, customizable |
Model Runners
| Tool | Description | Key Features |
|---|
| Ollama | Run LLMs locally | Easy setup, model library |
| LM Studio | Desktop app for local LLMs | GUI, model management |
Development Environments
| Tool | Description | Key Features |
|---|
| Zed | High-performance collaborative code editor | Rust-based, fast |
| Void | Modern AI-first code editor | Open source, extensible |
| Tool | Description | Key Features |
|---|
| Aider | Command-line AI coding assistant | Git integration, pair programming |
| SWE-Agent | Software Engineer Agent | Autonomous coding |
Infrastructure & Deployment
| Tool | Description | Key Features |
|---|
| vLLM | High-throughput LLM serving | PagedAttention, fast inference |
| Text Generation Inference | Production-ready LLM serving | Hugging Face models |
| LocalAI | Self-hosted OpenAI-compatible API | Drop-in replacement |
