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Top Python LLM Libraries 2025

GitHub Libraries → Python → LLM Libraries
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huggingface/transformers 143K +587

added 1 month ago

State-of-the-art Machine Learning for JAX, PyTorch and TensorFlow

Python AI / ML Libraries LLM Libraries

langchain-ai/langchain 106K +798

added 1 month ago

LangChain is a framework for developing applications powered by large language models (LLMs).

Python AI / ML Libraries LLM Libraries

langgenius/dify 93K +2876

added 1 month ago

Dify is an open-source LLM app development platform. Dify's intuitive interface combines AI workflow, RAG pipeline, agent capabilities, model management, observability features and more, letting you quickly go from prototype to production.

JavaScript AI / ML Libraries LLM Libraries Python AI / ML Libraries LLM Libraries

langflow-ai/langflow 55K +1017

added 1 month ago

Langflow is a low-code app builder for RAG and multi-agent AI applications. It’s Python-based and agnostic to any model, API, or database.

Python AI / ML Libraries LLM Libraries

geekan/metagpt 54K +458

added 1 month ago

Assign different roles to GPTs to form a collaborative entity for complex tasks.

Python AI / ML Libraries LLM Libraries

all-hands-ai/openhands 53K +640

added 1 month ago

Code less, make more. Use AI to tackle the toil in your backlog, so you can focus on what matters: hard problems, creative challenges, and over-engineering your dotfiles.

Python AI / ML Libraries LLM Libraries

hiyouga/llama-factory 47K +852

added 1 month ago

Easily fine-tune 100+ large language models with zero-code CLI and Web UI

Python LLM Libraries AI / ML Libraries

vllm-project/vllm 45K +1539

added 1 month ago

A high-throughput and memory-efficient inference and serving engine for LLMs

Python LLM Libraries AI / ML Libraries

unclecode/crawl4ai 40K +1512

added 1 month ago

Crawl4AI: Open-source LLM Friendly Web Crawler & Scraper.

Python Web Scrapers AI / ML Libraries LLM Libraries Web Automation Libraries

unslothai/unsloth 37K +487

added 1 month ago

Easily finetune and train LLMs 2x faster and with 80% less memory!

Python AI / ML Libraries LLM Libraries

facebookresearch/faiss 34K +233

added 1 month ago

A library for efficient similarity search and clustering of dense vectors. Faiss is written in C++ with complete wrappers for Python/numpy

C/C++ AI / ML Libraries LLM Libraries Search Libraries Python AI / ML Libraries LLM Libraries Search Libraries

crewaiinc/crewai 30K +611

added 4 weeks ago

CrewAI is a lean, lightning-fast Python AI framework built entirely from scratch—completely independent of LangChain or other agent frameworks.

Python AI / ML Libraries LLM Libraries

lightning-ai/pytorch-lightning 29K +78

added 1 month ago

Pretrain, finetune ANY AI model of ANY size on multiple GPUs, TPUs with zero code changes.

Python LLM Libraries AI / ML Libraries

mem0ai/mem0 27K +452

added 1 month ago

Mem0 adds an intelligent memory layer to AI assistants, enabling personalized interactions by remembering user preferences and continuously adapting. It’s perfect for customer support chatbots, AI assistants, and autonomous systems.

Python LLM Libraries AI / ML Libraries

mindsdb/mindsdb 27K +116

added 1 month ago

MindsDB is a federated query engine that organizes messy enterprise data and delivers precise AI-driven answers. Think of it as a librarian Marie Kondo.

Python Data Platforms AI / ML Libraries LLM Libraries

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