Best Open Source LLM Frameworks
Ranked by GitHub stars and 343 days of tracked growth. The top open source LLM frameworks below are updated daily — pick two to see a full side-by-side comparison.
1
rea
Reverse engineer anything with agents, from app behavior down to native binaries.
2
ECC
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
3
hermes-agent
The agent that grows with you
4
firecrawl
Supercharge your AI agents with data from the web and beyond. Building the library for superintelligence. 🔥
5
AutoGPT
AutoGPT is the vision of accessible AI for everyone, to use and to build on. Our mission is to provide the tools, so that you can focus on what matters.
6
ollama
Get up and running with Kimi, GLM, MiniMax, DeepSeek, gpt-oss, Qwen, Gemma and other models.
7
prompts.chat
f.k.a. Awesome ChatGPT Prompts. Share, discover, and collect prompts from the community. Free and open source — self-host for your organization with complete privacy.
8
ponytail
Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.
9
transformers
🤗 Transformers: the model-definition framework for state-of-the-art machine learning models in text, vision, audio, and multimodal models, for both inference and training.
10
dify
Build Agentic workflows, RAG pipelines, with rich AI model and tool support on one collaborative workspace. Deploy on cloud, VPC, or self-hosted, so teams move from prototype to production without rebuilding the stack.
11
open-webui
User-friendly AI Interface (Supports Ollama, OpenAI API, ...)
12
langchain
The agent engineering platform.
⚖️ Compare LLM frameworks head-to-head
Real adoption data, side by side.