Resources

192 AI learning resources, 192 links hand-checked (2026-10-19) — official courses, docs, open-source projects and free tutorials.

Free Tutorial Beginner ★ Featured

Liao Xuefeng's Python Tutorial

廖雪峰 · AI Fundamentals

One of the most widely circulated Python beginner tutorials in the Chinese-speaking world, written in plain language and covering syntax, functions, OOP, and common standard libraries. It is completely free to read.

Free Chinese Details →
Official Course Beginner ★ Featured

AI for Everyone by Andrew Ng

DeepLearning.AI / Coursera · AI Fundamentals

Andrew Ng's AI literacy course for non-technical audiences, covering what AI can actually do, where its limits lie, and how to pick AI projects at work. Auditing is free.

Freemium English (Chinese subtitles) Details →
Free Tutorial Beginner ★ Featured

Kaggle Learn Micro-Courses

Kaggle · AI Fundamentals

Kaggle's official series of short courses with hands-on exercises in the browser, covering Python, Pandas, machine learning, deep learning, and feature engineering basics.

Free English Details →
Official Course Beginner ★ Featured

Google Machine Learning Crash Course (MLCC)

Google · Machine Learning

Google's machine learning crash course with videos, lectures, and interactive exercises, spanning linear regression to neural networks and representation learning.

Free English (community Chinese translation) Details →
Official Course Beginner ★ Featured

Hung-yi Lee's Machine Learning Course (NTU)

台湾大学 李宏毅 · Machine Learning

A Chinese-language machine learning course by NTU professor Hung-yi Lee, known for its humorous style and comprehensive coverage, updated every year. Full re-uploads are on Bilibili.

Free Chinese Details →
Open Source Project Beginner ★ Featured

Dive into Deep Learning (Chinese Edition)

李沐 等 · Deep Learning

An open-source deep learning textbook in Chinese, with runnable code, video lectures, and exercises, taking learners from zero to full project practice.

Free Chinese Details →
Official Docs Beginner ★ Featured

PyTorch Official Tutorials

PyTorch(Meta) · Deep Learning

PyTorch's complete official tutorials, from tensor basics to large-model training, with a Chinese version on the site plus a 60-minute quick start.

Free English (official Chinese version) Details →
Official Course Intermediate ★ Featured

Hugging Face NLP Course

Hugging Face · Large Language Models

Hugging Face's official course covering Transformer architectures, fine-tuning, and the Transformers ecosystem. Completely free and widely recommended.

Free English (community Chinese translation) Details →
Official Docs Intermediate ★ Featured

OpenAI API Official Docs

OpenAI · Large Language Models

OpenAI's official API documentation covering model capabilities, function calling, structured outputs, and best practices. The primary source for API-driven development.

Free English Details →
Official Docs Beginner ★ Featured

DeepSeek Open Platform Docs

DeepSeek · Large Language Models

DeepSeek's official API documentation: Chinese-friendly and inexpensive, a good fit for first API calls and reasoning-model experiments, with free credits for new users.

Free Chinese Details →
Free Tutorial Beginner ★ Featured

Prompt Engineering Guide (Chinese Edition)

DAIR.AI · Prompting & Apps

The most systematic open-source prompt engineering tutorial. The Chinese edition covers fundamental techniques, RAG, Agents, and adversarial safety.

Free Chinese Details →
Official Course Intermediate ★ Featured

Hugging Face Agents Course

Hugging Face · AI Agent Development

Hugging Face's official Agent course covering tool calling, RAG, reasoning agents, and hands-on work with smolagents. All free.

Free English Details →
Official Docs Intermediate ★ Featured

LangChain Official Docs

LangChain · AI Agent Development

Docs for the most popular LLM application framework, covering model I/O, chains, retrieval, memory, and Agents, with a huge ecosystem.

Free English Details →
Open Source Project Beginner ★ Featured

Dify Official Documentation

Dify · AI Agent Development

An open-source LLM app development platform with visual orchestration of RAG and Agents, one-click deployment, and friendly Chinese docs.

Free Chinese Details →
Tool & Platform Beginner ★ Featured

Coze

字节跳动 · AI Agent Development

ByteDance's no-code platform for building AI apps, with publishing to Feishu, WeChat, and other channels. New users get free credits.

Free Chinese Details →
Open Source Project Intermediate ★ Featured

Hugging Face Transformers

Hugging Face · Open Source & Tools

Official docs for the Transformers library, supporting inference, training, and fine-tuning of hundreds of pretrained models — the standard tool for working with models.

Free English Details →
Open Source Project Beginner ★ Featured

Ollama Local LLM Tool

Ollama · Deployment & Serving

Run open-source LLMs locally with a single command on Windows, macOS, or Linux — the go-to starting point for local deployment.

Free English Details →
Free Tutorial Beginner

Runoob Python 3 Tutorial

菜鸟教程 · AI Fundamentals

A quick-reference Python tutorial in Chinese with concise explanations and plenty of examples, handy to keep around as a desk reference.

Free Chinese Details →
Free Tutorial Beginner

Mofan's Python Tutorial for Beginners

莫烦 · AI Fundamentals

Free beginner-friendly Python and machine learning tutorials, rich in illustrations and driven by examples, explained in an intuitive style.

Free Chinese Details →
Official Course Intermediate

Deep Learning Specialization

DeepLearning.AI / Coursera · Deep Learning

A five-course series taught by Andrew Ng, running from neural network basics to CNNs, RNNs, and sequence models. Audit for free; certificates require a subscription.

Freemium English (Chinese subtitles) Details →
Free Tutorial Beginner

Elements of AI

赫尔辛基大学 & Reaktor · AI Fundamentals

A free AI literacy course from Finland with no programming prerequisites, covering the history, principles, ethics, and philosophy of AI. A Chinese version is available.

Free Multilingual (incl. Chinese) Details →
Free Tutorial Intermediate

fast.ai Practical Deep Learning for Coders

fast.ai · Deep Learning

The famous top-down deep learning course: get projects running first, then learn the theory. Ships with the fastai library and full video lectures, all free.

Free English (community Chinese subs) Details →
Free Tutorial Beginner

3Blue1Brown Neural Networks Series

Grant Sanderson · AI Fundamentals

Beautiful animations make gradient descent, backpropagation, and the core principles of neural networks intuitive. Officially licensed Chinese-subtitled versions are on Bilibili.

Free English (Chinese subs on Bilibili) Details →
Free Tutorial Intermediate

Andrej Karpathy's Neural Networks: Zero to Hero

Andrej Karpathy · Deep Learning

A video series by former OpenAI founding member Andrej Karpathy: build backpropagation, character-level language models, and miniGPT from scratch. Hardcore but hugely popular.

Free English (Chinese subs on Bilibili) Details →
Official Course Beginner

Baidu PaddlePaddle AI Studio

百度 · AI Fundamentals

Baidu's official PaddlePaddle AI learning and training platform, offering free courses, online Notebooks, and free GPU compute, with fast access from within China.

Free Chinese Details →
Community Intermediate

Alibaba Cloud Tianchi

阿里云 · Community & News

Alibaba Cloud's data science competition and learning community, offering datasets, contests, beginner tutorials, and compute support.

Free Chinese Details →
Official Course Intermediate

Stanford CS229 Machine Learning

斯坦福大学 · Machine Learning

Stanford's classic machine learning course, taught for years by Andrew Ng, covering supervised and unsupervised learning with theory. All lecture notes and videos are public.

Free English Details →
Official Docs Beginner

scikit-learn User Guide

scikit-learn 社区 · Machine Learning

The official user guide for the classic machine learning library, with clear algorithm explanations and complete examples. The best docs for learning traditional ML.

Free English Details →
Official Docs Beginner

TensorFlow Official Tutorials

Google · Deep Learning

Official TensorFlow tutorials covering a quick Keras start plus full-scenario examples for vision, text, and generative AI.

Free English Details →
Open Source Project Intermediate

Hands-On Machine Learning (3rd Edition) Companion Code

Aurélien Géron · Machine Learning

The open-source code repository for the classic ML textbook, covering full workflows with Scikit-Learn, Keras, and TensorFlow. Best used alongside the book.

Free English (popular Chinese translation) Details →
Official Course Intermediate

Hugging Face LLM Course

Hugging Face · Large Language Models

A systematic walkthrough of LLM architecture, tokenization, pretraining, alignment, and inference optimization, with runnable experiments. All free.

Free English Details →
Official Docs Beginner

OpenAI Prompt Engineering Guide

OpenAI · Prompting & Apps

OpenAI's official prompt engineering guide, distilling six core strategies with plenty of positive and negative examples. Short and sharp.

Free English Details →
Official Docs Intermediate

OpenAI Cookbook

OpenAI · Large Language Models

OpenAI's official collection of runnable examples for common scenarios such as RAG, Agents, and function calling. Learn by copying.

Free English Details →
Official Docs Intermediate

Anthropic Claude Official Docs

Anthropic · Large Language Models

Official Claude API documentation covering the Messages API, tool use, MCP, and prompt engineering. Exceptionally well written.

Free English Details →
Official Docs Intermediate

Google AI for Developers (Gemini)

Google · Large Language Models

Official Gemini API docs and tutorials, including free tiers, multimodal capabilities, and a getting-started guide for Vertex AI.

Free English Details →
Official Docs Intermediate

Alibaba Cloud Model Studio (Qwen API)

阿里云 · Large Language Models

Docs for Alibaba Cloud's Model Studio platform, offering APIs for the full Qwen model family, application orchestration, and enterprise capabilities, with free credits for new users.

Free Chinese Details →
Official Docs Intermediate

Zhipu AI Open Platform

智谱 AI · Large Language Models

Zhipu's official open platform, with API docs for GLM-4 and related models plus knowledge base and Agent capabilities. Free credits for new users.

Free Chinese Details →
Official Docs Intermediate

Moonshot AI Kimi Open Platform

月之暗面 · Large Language Models

Kimi's official API platform, built around ultra-long context. The docs are concise and quick to get through, with free credits for new users.

Free Chinese Details →
Official Docs Intermediate

Volcano Engine Ark (Doubao Models)

字节跳动 · Large Language Models

Docs for ByteDance's Volcano Engine LLM platform, offering the Doubao model family and model-as-a-service capabilities, with free credits for new users.

Free Chinese Details →
Official Docs Intermediate

Baidu AI Cloud Qianfan LLM Platform

百度 · Large Language Models

Docs for Baidu's Qianfan platform, covering ERNIE-series model APIs, fine-tuning, and the full app development workflow.

Free Chinese Details →
Official Docs Intermediate

MiniMax Open Platform

MiniMax · Large Language Models

MiniMax's official API platform, offering abab-series text models and speech synthesis, with thorough documentation.

Free Chinese Details →
Official Docs Intermediate

Tencent Hunyuan LLM

腾讯云 · Large Language Models

Tencent Hunyuan's official product page and docs hub, with API access to the hunyuan model series and industry solutions.

Free Chinese Details →
Tool & Platform Intermediate

SiliconFlow

硅基流动 · Large Language Models

A China-based LLM API aggregation platform: one key to call dozens of popular open-source models, with free credits for new users.

Free Chinese Details →
Free Tutorial Beginner

Learn Prompting

Sander Schulhoff 等 · Prompting & Apps

A veteran prompt engineering learning site, now grown into a course platform with free and paid courses on prompt engineering, AI safety, and more. A classic starting point.

Freemium English Details →
Community Intermediate

Hugging Face Daily Papers

Hugging Face · Community & News

Hugging Face's daily picks from ArXiv, with community upvotes and discussions. A lightweight way to track the frontier.

Free English Details →
Free Tutorial Advanced

Lil'Log Tech Blog

Lilian Weng · Large Language Models

The tech blog of OpenAI's former safety lead, with classic long reads on LLMs, Agents, and RLHF. Worth rereading.

Free English Details →
Free Tutorial Beginner

Jay Alammar's Illustrated AI

Jay Alammar · Large Language Models

Visual, illustration-driven explanations of Transformers, BERT, GPT, and diffusion models. Many people's go-to intro classic.

Free English Details →
Community Intermediate

Papers with Code

Papers with Code · Community & News

An academic community that pairs papers with code, where you can browse SOTA methods and open-source implementations by task.

Free English Details →
Official Docs Advanced

LangGraph Official Docs

LangChain · AI Agent Development

LangChain's framework for orchestrating stateful Agents, supporting cycles, human-in-the-loop, persistence, and debugging.

Free English Details →
Official Docs Intermediate

LlamaIndex Official Docs

LlamaIndex · AI Agent Development

A data framework for RAG development, covering retrieval, indexing, query engines, and Agents, with rich documentation examples.

Free English Details →
Open Source Project Beginner

FastGPT Official Documentation

FastGPT · AI Agent Development

An open-source knowledge base Q&A system with out-of-the-box visual RAG orchestration, APIs, and Docker deployment.

Free Chinese Details →
Open Source Project Advanced

Microsoft AutoGen

Microsoft · AI Agent Development

Microsoft's open-source multi-agent conversation framework, supporting multi-agent collaboration, code execution, and human-in-the-loop workflows.

Free English Details →
Open Source Project Advanced

MetaGPT Official Documentation

MetaGPT · AI Agent Development

A multi-agent framework that assigns SOPs to different agent roles so they can collaborate on complex tasks.

Free English Details →
Open Source Project Beginner

n8n Official Documentation

n8n · AI Agent Development

An open-source workflow automation platform with built-in AI nodes, hundreds of app integrations, and self-hosting support.

Free English Details →
Official Course Beginner

DeepLearning.AI Short Courses

DeepLearning.AI · AI Agent Development

One-hour short courses from Andrew Ng's team, covering hot topics like Agents, RAG, and prompt engineering — all free.

Free English (partial Chinese subs) Details →
Open Source Project Intermediate

ComfyUI Official Documentation

ComfyUI · Multimodal & AIGC

A node-based Stable Diffusion workflow tool; the docs cover installation, workflow examples, and custom node development.

Free English Details →
Official Docs Intermediate

Hugging Face Diffusers

Hugging Face · Multimodal & AIGC

Documentation for Hugging Face's diffusion model library, covering Stable Diffusion, ControlNet, and video generation, with runnable code.

Free English Details →
Open Source Project Beginner

Ultralytics YOLO Documentation

Ultralytics · Multimodal & AIGC

Official docs for the YOLO object detection framework — training, validation, deployment, and tracking in one place, with a fast learning curve.

Free English Details →
Open Source Project Intermediate

OpenAI Whisper Speech Recognition

OpenAI · Multimodal & AIGC

An open-source general-purpose speech recognition model supporting multilingual transcription and translation, runnable locally with a single command.

Free English Details →
Official Docs Beginner

Midjourney Official Documentation

Midjourney · Multimodal & AIGC

Official docs covering prompts, parameters, style references, and the web editor. A subscription is required.

Paid English Details →
Official Docs Beginner

Alibaba Tongyi Wanxiang

阿里云 · Multimodal & AIGC

Official help docs for Tongyi Wanxiang, covering text-to-image, style transfer, and API usage. New users get free credits.

Free Chinese Details →
Open Source Project Advanced

vLLM Official Documentation

vLLM 社区 · Deployment & Serving

A high-performance LLM inference and serving engine; PagedAttention dramatically boosts throughput, with support for mainstream open-source models.

Free English Details →
Open Source Project Intermediate

LLaMA-Factory Fine-Tuning Framework

hiyouga 等 · Open Source & Tools

A one-stop LLM fine-tuning framework supporting LoRA and full fine-tuning of mainstream open-source models, with friendly Chinese docs and a quick start.

Free Chinese (README) Details →
Open Source Project Intermediate

RAGFlow Knowledge Engine

infiniflow · Open Source & Tools

A RAG engine built on deep document understanding, offering out-of-the-box knowledge-base Q&A and parsing of complex document formats.

Free English Details →
Open Source Project Beginner

Open WebUI

Open WebUI · Deployment & Serving

A self-hosted AI chat interface that supports Ollama and OpenAI-compatible APIs, and can be deployed offline on an intranet.

Free English Details →
Open Source Project Intermediate

Alibaba Qwen Open-Source Models

阿里云 · Open Source & Tools

The Qwen series open-source model repository, covering everything from 0.5B to 110B+ parameters plus multimodal variants, with an active ecosystem.

Free Chinese (README) Details →
Official Docs Intermediate

Baidu PaddlePaddle Documentation

百度 · Open Source & Tools

China's first open-source deep learning framework, with comprehensive Chinese docs and industry case studies, and support for domestic hardware.

Free Chinese Details →
Official Docs Intermediate

Huawei MindSpore Official Tutorials

华为 · Open Source & Tools

Huawei's open-source deep learning framework with thorough docs and tutorials, tuned for Ascend hardware and domestic tech stacks.

Free Chinese Details →
Community Beginner

Datawhale Open-Source Learning Community

Datawhale · Community & News

A well-known Chinese open-source learning community offering team-based learning, open-source tutorials, and competition coaching in a friendly atmosphere.

Free Chinese Details →
Community Beginner

Heywhale Community

和鲸科技 · Community & News

An online data science practice community with Notebook environments, datasets, and courses — practice without installing anything.

Free Chinese Details →
Tool & Platform Beginner

OpenBayes Compute and Learning Platform

OpenBayes · Community & News

A Chinese GPU compute rental and learning platform with container environments and datasets. Students and beginners get free credits.

Free Chinese Details →
Official Docs Beginner

Official Python Tutorial

Python Software Foundation · AI Fundamentals

The official beginner tutorial from the Python team, covering syntax, data structures, modules, and error handling — the authoritative source for language details.

Free English Details →
Free Tutorial Beginner

Real Python Tutorials

Real Python · AI Fundamentals

A Python learning site known for clear step-by-step tutorials, with high-quality articles on web development, data, and automation. Some advanced content requires a subscription.

Freemium English Details →
Free Tutorial Beginner

3Blue1Brown: Essence of Linear Algebra

3Blue1Brown · AI Fundamentals

Animated, intuitive explanations of vectors, matrices, and eigenvalues, widely regarded as the best material for building linear algebra intuition. Chinese-dubbed versions circulate in the community.

Free English Details →
Free Tutorial Beginner

3Blue1Brown: Essence of Calculus

3Blue1Brown · AI Fundamentals

Visual explanations of the core ideas behind derivatives, integrals, and series — a fast way to rebuild math intuition as a foundation for understanding model training.

Free English Details →
Free Textbook Intermediate

Immersive Linear Algebra

J. Ström 等 · AI Fundamentals

An interactive online linear algebra textbook with plenty of dynamic figures and an emphasis on geometric intuition, free to read online.

Free English Details →
Free Tutorial Beginner

StatQuest Statistics Fundamentals

Josh Starmer · AI Fundamentals

Short, clear animated videos explaining statistics and machine learning concepts at a friendly pace — a lifesaver for many beginners.

Free English Details →
Official Course Beginner

Andrew Ng's Machine Learning Specialization

DeepLearning.AI · Machine Learning

Andrew Ng's classic machine learning specialization on Coursera, with a long-standing reputation, covering regression, classification, and clustering. Free to audit.

Freemium English Details →
Free Textbook Advanced

Probabilistic Machine Learning Online Book

Kevin Murphy · Machine Learning

Kevin Murphy's authoritative two-volume work, with a free online reading version covering probabilistic machine learning from fundamentals to the frontier.

Free English Details →
Tool & Platform Intermediate

OpenML Open Machine Learning Platform

OpenML · Machine Learning

An open scientific data platform pooling vast datasets, experiment pipelines, and results, making it easy to reproduce papers and compare model performance.

Free English Details →
Official Docs Intermediate

JAX Official Documentation

Google · Deep Learning

Documentation for Google's accelerated numerical computing library, supporting automatic differentiation and GPU/TPU compilation — a popular choice for research and high-performance experiments.

Free English Details →
Official Docs Beginner

Keras Official Documentation

Keras 团队 · Deep Learning

Official docs for the deep learning framework known for its friendly API, with step-by-step tutorials that get you building your first model fast.

Free English Details →
Official Docs Intermediate

PyTorch Lightning Official GitHub Repository

Lightning AI · Deep Learning

A lightweight training framework that wraps engineering details on top of PyTorch, helping you write cleaner, reusable training code. Note: in October 2026 the Lightning platform suspended service after a security incident, so official docs are temporarily unavailable — for now, source code and examples are available via the GitHub repository.

Free English Details →
Free Textbook Beginner

Dive into Deep Learning (English Edition)

D2L 社区 · Deep Learning

A deep learning textbook maintained by the global open-source community, combining explanations, code, and exercises — the same source as the Chinese edition.

Free English Details →
Official Docs Intermediate

Mistral AI Official Documentation

Mistral AI · Large Language Models

Official API and model documentation from Mistral AI, covering everything from chat completions to function calling.

Free English Details →
Paper Intermediate

The "Attention Is All You Need" Paper

Vaswani 等 · Large Language Models

The foundational paper of the Transformer architecture and the root of all large models; best read section by section alongside visual guides.

Free English Details →
Paper Intermediate

The BERT Paper

Devlin 等 · Large Language Models

The classic paper that introduced bidirectional pretraining, establishing the pretrain-then-finetune paradigm in NLP.

Free English Details →
Official Docs Beginner

Anthropic Prompt Engineering Guide

Anthropic · Prompting & Apps

Anthropic's official guide to prompt engineering, moving from clear instructions to chain of thought; the techniques transfer to other models.

Free English Details →
Open Source Project Beginner

Awesome ChatGPT Prompts

GitHub 社区 · Prompting & Apps

One of the most widely shared prompt collections on GitHub, with ready-made templates for writing, coding, learning, and more.

Free English Details →
Free Tutorial Intermediate

Brex Prompt Engineering Guide

Brex · Prompting & Apps

A prompt engineering handbook from the Brex team, distilling battle-tested techniques and anti-patterns from production.

Free English Details →
Official Docs Beginner

GitHub Copilot Documentation

GitHub · AI-Assisted Coding

Official GitHub docs for Copilot, covering installation, prompting tips, and setup across editors.

Free English Details →
Tool & Platform Beginner

Cursor AI Code Editor

Anysphere · AI-Assisted Coding

A code editor built around deep AI integration, with codebase Q&A and multi-file editing; free tier available.

Freemium English Details →
Open Source Project Intermediate

Cline Open-Source AI Coding Assistant

Cline · AI-Assisted Coding

An open-source autonomous coding assistant for VS Code that reads and writes files and runs commands with your own API key.

Free English Details →
Open Source Project Intermediate

Aider Command-Line AI Coding Tool

Aider · AI-Assisted Coding

An open-source tool for pair programming with AI from the terminal, with automatic Git commits — great for scripted codebase refactors.

Free English Details →
Open Source Project Intermediate

Continue Open-Source Coding Assistant

Continue · AI-Assisted Coding

An open-source AI coding extension for VS Code and JetBrains that connects to any local or cloud model, keeping you in control of privacy.

Free English Details →
Open Source Project Intermediate

Tabby Self-Hosted Coding Assistant

Tabby · AI-Assisted Coding

A self-hosted code completion and Q&A service that works with many editors — ideal for teams that require code to stay on-prem.

Free English Details →
Tool & Platform Beginner

CodeGeeX Code Assistant

智谱 AI · AI-Assisted Coding

A code generation and completion tool from Zhipu AI with friendly Chinese interaction, supporting mainstream IDEs.

Freemium Chinese Details →
Tool & Platform Beginner

Tongyi Lingma

阿里云 · AI-Assisted Coding

An AI coding assistant from Alibaba Cloud powered by the Tongyi models, free for individual use and compatible with mainstream IDEs.

Free Chinese Details →
Open Source Project Advanced

OpenHands Open-Source Coding Agent

All Hands AI · AI-Assisted Coding

Formerly OpenDevin, an open-source autonomous software development agent that edits code, runs commands, and browses the web to complete tasks.

Free English Details →
Official Docs Intermediate

Claude Code Documentation

Anthropic · AI-Assisted Coding

Official docs for Anthropic's terminal coding agent, covering installation, common commands, and workflow setup.

Freemium English Details →
Tool & Platform Beginner

Windsurf AI Editor

Codeium · AI-Assisted Coding

An agentic IDE from the Codeium team built around the Cascade flow-based collaboration experience; free tier available.

Freemium English Details →
Official Docs Intermediate

Microsoft Semantic Kernel

Microsoft · AI Agent Development

Microsoft's open-source SDK that combines LLMs with plugins, planners, and memory; a common choice for enterprise integration.

Free English Details →
Official Docs Intermediate

OpenAI Agents SDK Documentation

OpenAI · AI Agent Development

Docs for OpenAI's official agent framework, with built-in tool calling, handoffs, and tracing.

Free English Details →
Open Source Project Intermediate

PydanticAI Framework Documentation

Pydantic · AI Agent Development

An agent framework built around Pydantic's type validation — reliable code, test-friendly, and carrying FastAPI's design DNA.

Free English Details →
Open Source Project Intermediate

Hugging Face smolagents

Hugging Face · AI Agent Development

A minimalist agent library from Hugging Face with a clean, readable core — great for learning how agents actually work.

Free English Details →
Official Docs Intermediate

Google Agent Development Kit

Google · AI Agent Development

Google's official agent development kit, supporting multi-agent orchestration and tool integration, and compatible with open models.

Free English Details →
Open Source Project Advanced

DSPy Programming Framework Documentation

Stanford NLP · AI Agent Development

A declarative LLM programming framework from Stanford that treats prompts as optimizable parameters, for systematic performance gains.

Free English Details →
Open Source Project Intermediate

Awesome Agentic AI

Titan Codes · AI Agent Development

A constantly updated collection of agent tools and resources, covering frameworks, evaluation, and multi-agent systems.

Free English Details →
Official Docs Beginner

CrewAI Documentation

CrewAI · AI Agent Development

A multi-agent framework built around role-based collaboration, quick to pick up with an active community — well suited to business automation.

Freemium English Details →
Free Tutorial Advanced

OWASP Top 10 for LLM Applications

OWASP · AI Agent Development

The OWASP Foundation's security checklist for LLM applications — the standard reference for risks like prompt injection and data leakage.

Free English Details →
Official Docs Intermediate

MCP Protocol Specification

Anthropic · MCP Protocol

The official MCP specification, defining the standard for hosts, clients, servers, and tool/resource exchange.

Free English Details →
Open Source Project Intermediate

MCP Servers Reference Repository

MCP 社区 · MCP Protocol

An official collection of MCP servers — filesystem, database, browser, and more, ready to use out of the box.

Free English Details →
Open Source Project Intermediate

MCP Python SDK

MCP 社区 · MCP Protocol

The official MCP Python SDK, with server and client implementations — the starting point for building custom servers.

Free English Details →
Open Source Project Intermediate

MCP TypeScript SDK

MCP 社区 · MCP Protocol

The official MCP TypeScript SDK, for building MCP servers in the Node ecosystem.

Free English Details →
Open Source Project Intermediate

Awesome MCP Servers

punkpeye · MCP Protocol

A community-maintained directory of MCP servers, indexed by category across production-grade and experimental options.

Free English Details →
Free Tutorial Beginner

Anthropic's MCP Announcement

Anthropic · MCP Protocol

The announcement post introducing MCP, explaining the motivation behind it and its goal of a unified interface for AI apps.

Free English Details →
Official Course Beginner

Hugging Face MCP Course

Hugging Face · MCP Protocol

A beginner-friendly MCP course from Hugging Face, taking you from concepts to building your first MCP server.

Free English Details →
Free Tutorial Intermediate

Pinecone Learn

Pinecone · RAG & Retrieval

A free learning hub from a vector database vendor, with high-quality articles on RAG, embeddings, and hybrid search.

Free English Details →
Free Tutorial Beginner

Pinecone RAG Introductory Article

Pinecone · RAG & Retrieval

An illustrated overview of RAG that clearly explains the motivation, pipeline, and common pitfalls of retrieval-augmented generation.

Free English Details →
Official Docs Intermediate

LangChain RAG Tutorial

LangChain · RAG & Retrieval

LangChain's official RAG tutorial, with complete runnable code from document splitting to retrieval-based Q&A.

Free English Details →
Open Source Project Beginner

Chroma Vector Database Documentation

Chroma · RAG & Retrieval

An open-source vector database known for its simplicity — a few lines of code to embed in your app, ideal for local and small projects.

Free English Details →
Open Source Project Intermediate

Qdrant Documentation

Qdrant · RAG & Retrieval

A high-performance vector database written in Rust, with filtering, quantization, and distributed deployment; thorough docs.

Free English Details →
Open Source Project Intermediate

pgvector Vector Search Extension

pgvector · RAG & Retrieval

A vector similarity extension for PostgreSQL that adds embeddings search to a standard database, with minimal ops overhead.

Free English Details →
Open Source Project Advanced

FAISS Similarity Search Library

Meta AI · RAG & Retrieval

An open-source vector search library from Meta that stays fast at billion scale — a standard tool in algorithm research.

Free English Details →
Open Source Project Intermediate

Sentence Transformers Official Site

UKPLab · RAG & Retrieval

The most popular sentence embeddings library, with hundreds of pretrained models and tasks like similarity computation and reranking.

Free English Details →
Tool & Platform Intermediate

MTEB Embedding Model Leaderboard

Hugging Face · RAG & Retrieval

A large-scale leaderboard for text embedding models, comparing performance across tasks and languages — a must-check when selecting a model.

Free English Details →
Open Source Project Advanced

Microsoft GraphRAG

Microsoft · RAG & Retrieval

Microsoft's open-source graph-based RAG approach that extracts a knowledge graph from documents and excels at questions requiring a global view.

Free English Details →
Paper Advanced

RAG Survey Paper

Gao 等 · RAG & Retrieval

A fairly comprehensive RAG survey covering the paradigms and evaluation methods of naive, advanced, and modular RAG.

Free English Details →
Tool & Platform Beginner

LM Studio Local Model Tool

LM Studio · Deployment & Serving

A GUI tool for running LLMs locally, with one-click model downloads and local chat — beginner friendly.

Free English Details →
Open Source Project Advanced

llama.cpp Inference Engine

ggerganov · Deployment & Serving

A pure C/C++ inference engine that runs LLMs even on CPU — one of the de facto standards for local deployment.

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Open Source Project Advanced

Hugging Face Text Generation Inference

Hugging Face · Deployment & Serving

Hugging Face's official inference serving framework with continuous batching and tensor parallelism, built for API-style deployment.

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Official Docs Beginner

Gradio Official Documentation

Gradio · Deployment & Serving

A Python library for ML demo interfaces — wrap a model into a shareable web app in a few lines.

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Official Docs Beginner

Streamlit Official Documentation

Streamlit · Deployment & Serving

A pure-Python framework for interactive web apps — a popular pick for AI prototypes and internal tools.

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Open Source Project Intermediate

MLflow Official Documentation

MLflow · Deployment & Serving

An open-source MLOps platform covering the full lifecycle: experiment tracking, model registry, and deployment management.

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Free Tutorial Intermediate

Made With ML Course

Goku Mohandas · Deployment & Serving

A production-oriented ML course covering the full engineering loop: features, training, deployment, and monitoring.

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Official Course Intermediate

Full Stack Deep Learning

Full Stack Deep Learning · Deployment & Serving

A university-backed full-stack deep learning course spanning the whole engineering pipeline from data to deployment.

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Official Docs Intermediate

Weights & Biases Documentation

W&B · Deployment & Serving

Docs for the popular experiment tracking platform: log metrics, compare runs, and manage datasets, with a generous free tier for individuals.

Freemium English Details →
Open Source Project Intermediate

AI Engineer Roadmap Repository

dswh · Deployment & Serving

A three-stage learning roadmap repository from LLM API basics to LLMOps, with a long list of project ideas.

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Tool & Platform Intermediate

Kaggle Competitions

Kaggle · Hands-on Projects

A data science competition community with real datasets and leaderboards — a great arena to test your skills after the basics.

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Open Source Project Advanced

Build Your Own X

codecrafters · Hands-on Projects

A big collection of tutorials for building technologies from scratch — databases, editors, neural network engines, and other hardcore projects.

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Open Source Project Intermediate

Awesome LLM Apps

Shubham Saboo · Hands-on Projects

A collection of LLM projects organized by use case, with runnable examples for RAG, agent, and multimodal apps.

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Open Source Project Intermediate

gpt-engineer

gpt-engineer · Hands-on Projects

An open-source project that generates an entire codebase from a one-line prompt — an early landmark experiment in AI programming.

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Open Source Project Intermediate

LLM Fine-Tuning Datasets Collection

Maxime Labonne · Hands-on Projects

A curated collection of fine-tuning-ready datasets, organized by conversation, instruction, and preference types, with quality notes.

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Official Course Intermediate

Hugging Face Audio Course

Hugging Face · Multimodal & AIGC

Hugging Face's official audio course covering hands-on speech recognition, classification, and text-to-speech.

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Official Course Intermediate

Hugging Face Computer Vision Course

Hugging Face · Multimodal & AIGC

Hugging Face's official vision course, from image classification to detection and segmentation, with code that runs right in Spaces.

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Official Course Intermediate

Hugging Face Diffusion Models Course

Hugging Face · Multimodal & AIGC

A systematic course on diffusion models from theory to practice, with generation experiments using the Diffusers library.

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Open Source Project Advanced

Stable Diffusion Original Repository

CompVis · Multimodal & AIGC

The original Stable Diffusion research repo with model architecture and inference code — first-hand material for understanding diffusion generation.

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Open Source Project Intermediate

LangChain Open-Source Repository

LangChain · Open Source & Tools

The main LangChain repository source, for developers who want to dig into the framework's internals or contribute to the community.

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Open Source Project Beginner

GPT4All Local Model Ecosystem

Nomic AI · Open Source & Tools

A local LLM ecosystem that runs on consumer hardware, with a model marketplace and desktop app — privacy friendly.

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Open Source Project Beginner

Lobe Chat

LobeHub · Open Source & Tools

A modern open-source chat UI framework supporting multiple model providers and plugins, easy to deploy.

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Open Source Project Intermediate

LibreChat

LibreChat · Open Source & Tools

An all-in-one open-source chat platform that connects OpenAI, Anthropic, and local models, with multi-user support.

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Open Source Project Beginner

AnythingLLM

Mintplex Labs · Open Source & Tools

A local-first document Q&A app — upload files and start chatting; great for quickly testing RAG ideas.

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Newsletter Beginner

The Batch Weekly

DeepLearning.AI · Community & News

A weekly AI newsletter from Andrew Ng's team, explaining the week's important papers and product news in plain language.

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Newsletter Intermediate

Simon Willison's Blog

Simon Willison · Community & News

A veteran developer's personal blog, widely read for its prompt injection and engineering posts, with frequent updates.

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Newsletter Beginner

机器之心

机器之心 · Community & News

A veteran Chinese AI media outlet covering research progress, industry news, and interviews, with frequent updates.

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Newsletter Beginner

量子位

量子位 · Community & News

A well-known Chinese AI media outlet with a light, readable style — good for quickly following China's AI scene.

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Newsletter Intermediate

r/LocalLLaMA Community

Reddit · Community & News

Reddit's most active local LLM community, packed with first-hand info on quantization, deployment, and model benchmarks.

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Open Source Project Beginner

Awesome AI Resources

mohabdelkarim · Community & News

A free AI resource collection organized around learning roadmaps, with courses, books, and tools labeled by difficulty.

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Tool & Platform Beginner

ChatGPT

OpenAI · Tools & API Platforms

OpenAI's conversational product — the free tier is enough to try mainstream model capabilities, and it is most people's first stop with AI.

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Tool & Platform Beginner

Claude

Anthropic · Tools & API Platforms

Anthropic's conversational product, well regarded for long context and coding; the free tier works for daily use.

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Tool & Platform Beginner

Perplexity AI

Perplexity · Tools & API Platforms

An AI-native search engine whose answers cite sources — handy for quickly verifying questions that come up while studying.

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Tool & Platform Intermediate

GroqCloud Console

Groq · Tools & API Platforms

Groq's inference cloud runs open models at extreme speed, with free credits on signup.

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Tool & Platform Beginner

Google AI Studio

Google · Tools & API Platforms

Google's model playground: call Gemini models and debug prompts right in the browser, with a friendly free tier.

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Tool & Platform Intermediate

OpenRouter

OpenRouter · Tools & API Platforms

A unified LLM API gateway — one key for hundreds of models, some of them free.

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Tool & Platform Intermediate

Together AI

Together · Tools & API Platforms

A cloud platform for serving open models, with serverless and dedicated endpoints plus trial credits on signup.

Freemium English Details →
Official Docs Intermediate

Cloudflare Workers AI

Cloudflare · Tools & API Platforms

Docs for running models on Cloudflare's edge, deeply integrated with the Workers ecosystem, with a free tier.

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Open Source Project Intermediate

LiteLLM Documentation

BerriAI · Tools & API Platforms

A proxy SDK that calls 100+ LLMs in the OpenAI format, with built-in retries, budgets, and logging.

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Open Source Project Intermediate

Instructor Structured Output Library

Jason Liu · Tools & API Platforms

A Pydantic-based structured output library with solid retry and validation — a great companion for function calling.

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