Best Open Source llm Libraries
A curated list of the most popular GitHub repositories tagged with llm. Select any project to visualize its architecture and dive into the codebase using GitPulse's AI engine.
#1Significant-Gravitas/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.
#2affaan-m/everything-claude-code
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
#3huggingface/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.
#4BerriAI/litellm
Python SDK, Proxy Server (AI Gateway) to call 100+ LLM APIs in OpenAI (or native) format, with cost tracking, guardrails, loadbalancing and logging. [Bedrock, Azure, OpenAI, VertexAI, Cohere, Anthropic, Sagemaker, HuggingFace, VLLM, NVIDIA NIM]
#5ComposioHQ/composio
Composio powers 1000+ toolkits, tool search, context management, authentication, and a sandboxed workbench to help you build AI agents that turn intent into action.
#6openai/openai-agents-python
A lightweight, powerful framework for multi-agent workflows
#7iOfficeAI/AionUi
Free, local, open-source 24/7 Cowork app for OpenClaw, Hermes Agent, Claude Code, Codex, OpenCode, Gemini CLI and 20+ more CLI | Customize your assistants | Star if you like it!
#8Skyvern-AI/skyvern
Automate browser based workflows with AI
#9InternLM/lmdeploy
LMDeploy is a toolkit for compressing, deploying, and serving LLMs.
#10icip-cas/PPTAgent
An Agentic Framework for Reflective PowerPoint Generation
#11dataelement/Clawith
Your Agent Company
#12onestardao/WFGY
WFGY is heading toward WFGY 5.0 Polaris Protocol, a major open-source release for AI reasoning, RAG, agents, and real-world workflows. Includes Problem Map, Global Debug Card, WFGY 4.0, and the CFV Easter Egg.
#13trpc-group/trpc-agent-go
trpc-agent-go is a powerful Go framework for building intelligent agent systems using large language models (LLMs) and tools.
#14esengine/DeepSeek-Reasonix
DeepSeek-native AI coding agent for your terminal. Engineered around prefix-cache stability — leave it running.
#15OpenCSGs/csghub-server
csghub-server is the backend server for CSGHub which helps user to manage datasets, modes, and also run Model Inference, Finetune and Application Spaces.
#16cyberkaida/reverse-engineering-assistant
MCP server for reverse engineering tasks in Ghidra 👩💻
#17mx-space/core
AI-powered CMS core for personal blogs and creator websites, with AI summaries, translation, moderation, and writing workflows.
#18liaohch3/claude-tap
Intercept and inspect API traffic from Claude Code, Codex CLI, OpenCode, and Cursor CLI in a trace viewer.
#19alistaitsacle/free-llm-api-keys
Free LLM API keys for GPT-5.4, Claude, DeepSeek, Gemini, Grok — copy, paste, use. Updated 3-5x daily. No credit card needed.
#20403errors/repomind
An open-source, AI-powered application using Agentic CAG to chat with any public GitHub repository or developer profile, offering deep code analysis, visual architecture maps and security audits