Free Tutorial
Beginner
★ Featured
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.
Official Course
Beginner
★ Featured
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.
Free Tutorial
Beginner
★ Featured
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.
Official Course
Beginner
★ Featured
Google · Machine Learning
Google's machine learning crash course with videos, lectures, and interactive exercises, spanning linear regression to neural networks and representation learning.
Official Course
Beginner
★ Featured
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.
Open Source Project
Beginner
★ Featured
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.
Official Docs
Beginner
★ Featured
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.
Official Course
Intermediate
★ Featured
Hugging Face · Large Language Models
Hugging Face's official course covering Transformer architectures, fine-tuning, and the Transformers ecosystem. Completely free and widely recommended.
Official Docs
Intermediate
★ Featured
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.
Official Docs
Beginner
★ Featured
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 Tutorial
Beginner
★ Featured
DAIR.AI · Prompting & Apps
The most systematic open-source prompt engineering tutorial. The Chinese edition covers fundamental techniques, RAG, Agents, and adversarial safety.
Official Course
Intermediate
★ Featured
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.
Official Docs
Intermediate
★ Featured
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.
Open Source Project
Beginner
★ Featured
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.
Tool & Platform
Beginner
★ Featured
字节跳动 · AI Agent Platforms
ByteDance's no-code platform for building AI apps, with publishing to Feishu, WeChat, and other channels. New users get free credits.
Open Source Project
Intermediate
★ Featured
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.
Open Source Project
Beginner
★ Featured
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.
Tool & Platform
Beginner
★ Featured
字节跳动 · AI Chat Assistants
ByteDance's AI assistant with natural Chinese conversation, voice calls, image understanding and AI coding. Completely free on web and app — the easiest starting point for Chinese users.
Tool & Platform
Beginner
★ Featured
月之暗面 · AI Chat Assistants
Moonshot's AI assistant, famous for its ultra-long context — ideal for reading long documents, papers and web pages. Free to use and one of the top picks for Chinese long-text work.
Tool & Platform
Beginner
★ Featured
幻方量化 · AI Chat Assistants
High-Fly Quant's reasoning model with standout math and coding ability. Free on web and app, open-weight, and cheap API pricing — a crowd favorite among Chinese models.
Tool & Platform
Beginner
★ Featured
快手 · AI Video Generators
Kuaishou's video generation model — coherent character motion and cinematic camera moves are its strengths. Supports text-to-video, image-to-video and lip sync. Free daily credits; exports carry a watermark.
Tool & Platform
Beginner
★ Featured
MiniMax · AI Video Generators
MiniMax's video tool — fast generation, short queues, delicate facial micro-expressions. Free daily quota on the free tier; exports carry a watermark.
Tool & Platform
Beginner
★ Featured
字节跳动 · AI Video Generators
ByteDance's all-in-one AI creation platform — strong at both video and image, with good Chinese semantics, built-in storyboard templates and a music library, tied into the CapCut ecosystem. Free daily credits; watermarked.
Tool & Platform
Beginner
★ Featured
阿里巴巴 · AI Image & Design
Alibaba's image and video platform — Chinese long-text and poster text rendering is its signature. Generous daily free quota; free version is watermarked.
Tool & Platform
Beginner
★ Featured
Suno · AI Audio & Music
The most popular AI music tool — full songs with vocals from one sentence, across many styles. Free tier: ~10 songs/day, non-commercial, limited downloads.
Tool & Platform
Beginner
★ Featured
Google · AI Learning & Research
Google's AI note and research tool — upload PDFs, web pages and videos to ask questions, generate summaries, flashcards and podcasts, with cited answers. Generous free tier; our most recommended study aid.
Free Tutorial
Beginner
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 Tutorial
Beginner
莫烦 · AI Fundamentals
Free beginner-friendly Python and machine learning tutorials, rich in illustrations and driven by examples, explained in an intuitive style.
Official Course
Intermediate
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.
Free Tutorial
Beginner
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 Tutorial
Intermediate
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 Tutorial
Beginner
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 Tutorial
Intermediate
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.
Official Course
Beginner
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.
Community
Intermediate
阿里云 · Community & News
Alibaba Cloud's data science competition and learning community, offering datasets, contests, beginner tutorials, and compute support.
Official Course
Intermediate
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.
Official Course
Intermediate
斯坦福大学 · Deep Learning
A landmark computer vision course covering CNN architectures, training tricks, and frontier models, with all videos and notes public.
Official Course
Intermediate
斯坦福大学 · Large Language Models
A core NLP course running from word vectors and RNNs up to Transformers and large models, always tracking the frontier, with all materials public.
Official Docs
Beginner
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.
Official Docs
Beginner
Google · Deep Learning
Official TensorFlow tutorials covering a quick Keras start plus full-scenario examples for vision, text, and generative AI.
Open Source Project
Intermediate
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.
Official Course
Intermediate
Hugging Face · Large Language Models
A systematic walkthrough of LLM architecture, tokenization, pretraining, alignment, and inference optimization, with runnable experiments. All free.
Official Docs
Beginner
OpenAI · Prompting & Apps
OpenAI's official prompt engineering guide, distilling six core strategies with plenty of positive and negative examples. Short and sharp.
Official Docs
Intermediate
OpenAI · Large Language Models
OpenAI's official collection of runnable examples for common scenarios such as RAG, Agents, and function calling. Learn by copying.
Official Docs
Intermediate
Anthropic · Large Language Models
Official Claude API documentation covering the Messages API, tool use, MCP, and prompt engineering. Exceptionally well written.
Official Docs
Intermediate
Google · Large Language Models
Official Gemini API docs and tutorials, including free tiers, multimodal capabilities, and a getting-started guide for Vertex AI.
Official Docs
Intermediate
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.
Official Docs
Intermediate
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.
Official Docs
Intermediate
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.
Official Docs
Intermediate
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.
Official Docs
Intermediate
百度 · Large Language Models
Docs for Baidu's Qianfan platform, covering ERNIE-series model APIs, fine-tuning, and the full app development workflow.
Official Docs
Intermediate
MiniMax · Large Language Models
MiniMax's official API platform, offering abab-series text models and speech synthesis, with thorough documentation.
Official Docs
Intermediate
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.
Tool & Platform
Intermediate
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 Tutorial
Beginner
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.
Community
Intermediate
Hugging Face · Community & News
Hugging Face's daily picks from ArXiv, with community upvotes and discussions. A lightweight way to track the frontier.
Free Tutorial
Advanced
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 Tutorial
Beginner
Jay Alammar · Large Language Models
Visual, illustration-driven explanations of Transformers, BERT, GPT, and diffusion models. Many people's go-to intro classic.
Community
Intermediate
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.
Official Docs
Advanced
LangChain · AI Agent Development
LangChain's framework for orchestrating stateful Agents, supporting cycles, human-in-the-loop, persistence, and debugging.
Official Docs
Intermediate
LlamaIndex · AI Agent Development
A data framework for RAG development, covering retrieval, indexing, query engines, and Agents, with rich documentation examples.
Open Source Project
Beginner
FastGPT · AI Agent Development
An open-source knowledge base Q&A system with out-of-the-box visual RAG orchestration, APIs, and Docker deployment.
Open Source Project
Advanced
Microsoft · AI Agent Development
Microsoft's open-source multi-agent conversation framework, supporting multi-agent collaboration, code execution, and human-in-the-loop workflows.
Open Source Project
Advanced
MetaGPT · AI Agent Development
A multi-agent framework that assigns SOPs to different agent roles so they can collaborate on complex tasks.
Official Docs
Intermediate
Anthropic · MCP Protocol
An open protocol standard for tool integration that has become the mainstream way for agents to connect to external tools and data. The docs include a quick start.
Open Source Project
Beginner
n8n · AI Agent Development
An open-source workflow automation platform with built-in AI nodes, hundreds of app integrations, and self-hosting support.
Official Course
Beginner
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.
Open Source Project
Intermediate
ComfyUI · Multimodal & AIGC
A node-based Stable Diffusion workflow tool; the docs cover installation, workflow examples, and custom node development.
Official Docs
Intermediate
Hugging Face · Multimodal & AIGC
Documentation for Hugging Face's diffusion model library, covering Stable Diffusion, ControlNet, and video generation, with runnable code.
Open Source Project
Beginner
Ultralytics · Multimodal & AIGC
Official docs for the YOLO object detection framework — training, validation, deployment, and tracking in one place, with a fast learning curve.
Open Source Project
Intermediate
OpenAI · Multimodal & AIGC
An open-source general-purpose speech recognition model supporting multilingual transcription and translation, runnable locally with a single command.
Official Docs
Beginner
Midjourney · Multimodal & AIGC
Official docs covering prompts, parameters, style references, and the web editor. A subscription is required.
Official Docs
Beginner
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.
Open Source Project
Advanced
vLLM 社区 · Deployment & Serving
A high-performance LLM inference and serving engine; PagedAttention dramatically boosts throughput, with support for mainstream open-source models.
Open Source Project
Intermediate
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.
Open Source Project
Intermediate
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.
Open Source Project
Beginner
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.
Open Source Project
Intermediate
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.
Official Docs
Intermediate
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.
Official Docs
Intermediate
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.
Community
Beginner
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.
Community
Beginner
和鲸科技 · Community & News
An online data science practice community with Notebook environments, datasets, and courses — practice without installing anything.
Community
Beginner
阮一峰 · Community & News
A weekly Chinese tech newsletter with dependable roundups of AI tools and industry trends, good for staying current.
Tool & Platform
Beginner
OpenBayes · Community & News
A Chinese GPU compute rental and learning platform with container environments and datasets. Students and beginners get free credits.
Official Docs
Beginner
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.
Official Course
Beginner
Harvard University · AI Fundamentals
Harvard CS50's Python intro course combining lectures and hands-on exercises, from basic syntax through object-oriented programming and testing — completely free.
Free Tutorial
Beginner
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.
Free Tutorial
Beginner
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 Tutorial
Beginner
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 Textbook
Intermediate
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 Tutorial
Beginner
Josh Starmer · AI Fundamentals
Short, clear animated videos explaining statistics and machine learning concepts at a friendly pace — a lifesaver for many beginners.
Official Course
Intermediate
Imperial College London · AI Fundamentals
A math specialization from Imperial College London covering linear algebra, multivariate calculus, and PCA, free to audit on Coursera.
Official Course
Beginner
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.
Free Textbook
Intermediate
Gareth James 等 · Machine Learning
The official site of the ISL/ISLP textbooks, with free PDF downloads — one of the most beginner-friendly authoritative books in statistical learning.
Free Textbook
Advanced
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.
Tool & Platform
Intermediate
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.
Official Course
Beginner
MIT · Machine Learning
An introduction to machine learning from MIT OpenCourseWare, with solid content and complete assignments — free to self-study.
Official Docs
Intermediate
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.
Official Docs
Beginner
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 Textbook
Advanced
Goodfellow 等 · Deep Learning
The field's universally acknowledged authoritative textbook, with free online reading — a desk reference to keep on hand.
Free Textbook
Beginner
Michael Nielsen · Deep Learning
Michael Nielsen's free online book, pairing figures with intuition, widely recommended as the first book for learning neural networks.
Official Course
Beginner
MIT · Deep Learning
MIT's short deep learning course, updated annually, with companion code labs covering vision, language, and generative models.
Official Course
Intermediate
NYU · Deep Learning
NYU's deep learning course taught by Yann LeCun and Alfredo Canziani, with all lecture notes and videos publicly available.
Official Docs
Intermediate
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 Textbook
Beginner
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.
Official Docs
Intermediate
Mistral AI · Large Language Models
Official API and model documentation from Mistral AI, covering everything from chat completions to function calling.
Paper
Intermediate
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.
Paper
Intermediate
Devlin 等 · Large Language Models
The classic paper that introduced bidirectional pretraining, establishing the pretrain-then-finetune paradigm in NLP.
Paper
Intermediate
Brown 等 · Large Language Models
The GPT-3 paper, which demonstrated the few-shot learning ability of large language models — key reading for understanding how they behave.
Paper
Advanced
Meta AI · Large Language Models
The Llama 3 technical report, detailing data, training, and alignment — the benchmark paper for open-source large models.
Official Docs
Beginner
Anthropic · Prompting & Apps
Anthropic's official guide to prompt engineering, moving from clear instructions to chain of thought; the techniques transfer to other models.
Open Source Project
Beginner
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.
Official Course
Beginner
DeepLearning.AI · Prompting & Apps
A one-hour prompt engineering short course by Andrew Ng and OpenAI, teaching the two guiding principles of prompt design.
Free Tutorial
Intermediate
Brex · Prompting & Apps
A prompt engineering handbook from the Brex team, distilling battle-tested techniques and anti-patterns from production.
Official Docs
Beginner
GitHub · AI-Assisted Coding
Official GitHub docs for Copilot, covering installation, prompting tips, and setup across editors.
Tool & Platform
Beginner
Anysphere · AI Coding Tools
A code editor built around deep AI integration, with codebase Q&A and multi-file editing; free tier available.
Open Source Project
Intermediate
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.
Open Source Project
Intermediate
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.
Open Source Project
Intermediate
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.
Open Source Project
Intermediate
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.
Tool & Platform
Beginner
智谱 AI · AI-Assisted Coding
A code generation and completion tool from Zhipu AI with friendly Chinese interaction, supporting mainstream IDEs.
Tool & Platform
Beginner
阿里云 · AI Coding Tools
An AI coding assistant from Alibaba Cloud powered by the Tongyi models, free for individual use and compatible with mainstream IDEs.
Open Source Project
Advanced
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.
Official Docs
Intermediate
Anthropic · AI-Assisted Coding
Official docs for Anthropic's terminal coding agent, covering installation, common commands, and workflow setup.
Tool & Platform
Beginner
Codeium · AI Coding Tools
An agentic IDE from the Codeium team built around the Cascade flow-based collaboration experience; free tier available.
Official Course
Beginner
Anthropic · AI Agent Development
A course repository maintained by Anthropic, covering the Claude API, tool use, and how to build agents.
Official Docs
Intermediate
Microsoft · AI Agent Development
Microsoft's open-source SDK that combines LLMs with plugins, planners, and memory; a common choice for enterprise integration.
Official Docs
Intermediate
OpenAI · AI Agent Development
Docs for OpenAI's official agent framework, with built-in tool calling, handoffs, and tracing.
Open Source Project
Intermediate
Pydantic · AI Agent Development
An agent framework built around Pydantic's type validation — reliable code, test-friendly, and carrying FastAPI's design DNA.
Open Source Project
Intermediate
Hugging Face · AI Agent Development
A minimalist agent library from Hugging Face with a clean, readable core — great for learning how agents actually work.
Official Docs
Intermediate
Google · AI Agent Development
Google's official agent development kit, supporting multi-agent orchestration and tool integration, and compatible with open models.
Open Source Project
Advanced
Stanford NLP · AI Agent Development
A declarative LLM programming framework from Stanford that treats prompts as optimizable parameters, for systematic performance gains.
Free Tutorial
Intermediate
Anthropic · AI Agent Development
An agent design article from Anthropic's engineering team that clarifies when to use workflows versus agents; widely influential.
Open Source Project
Intermediate
Titan Codes · AI Agent Development
A constantly updated collection of agent tools and resources, covering frameworks, evaluation, and multi-agent systems.
Official Docs
Beginner
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.
Open Source Project
Intermediate
Alok · AI Agent Development
A 12-week hands-on agent roadmap following learn, build, evaluate, improve — with a runnable project each week.
Free Tutorial
Advanced
OWASP · AI Agent Development
The OWASP Foundation's security checklist for LLM applications — the standard reference for risks like prompt injection and data leakage.
Official Docs
Intermediate
Anthropic · MCP Protocol
The official MCP specification, defining the standard for hosts, clients, servers, and tool/resource exchange.
Open Source Project
Intermediate
MCP 社区 · MCP Protocol
An official collection of MCP servers — filesystem, database, browser, and more, ready to use out of the box.
Open Source Project
Intermediate
MCP 社区 · MCP Protocol
The official MCP Python SDK, with server and client implementations — the starting point for building custom servers.
Open Source Project
Intermediate
MCP 社区 · MCP Protocol
The official MCP TypeScript SDK, for building MCP servers in the Node ecosystem.
Open Source Project
Intermediate
punkpeye · MCP Protocol
A community-maintained directory of MCP servers, indexed by category across production-grade and experimental options.
Free Tutorial
Beginner
Anthropic · MCP Protocol
The announcement post introducing MCP, explaining the motivation behind it and its goal of a unified interface for AI apps.
Official Course
Beginner
Hugging Face · MCP Protocol
A beginner-friendly MCP course from Hugging Face, taking you from concepts to building your first MCP server.
Free Tutorial
Intermediate
Pinecone · RAG & Retrieval
A free learning hub from a vector database vendor, with high-quality articles on RAG, embeddings, and hybrid search.
Free Tutorial
Beginner
Pinecone · RAG & Retrieval
An illustrated overview of RAG that clearly explains the motivation, pipeline, and common pitfalls of retrieval-augmented generation.
Official Docs
Intermediate
LangChain · RAG & Retrieval
LangChain's official RAG tutorial, with complete runnable code from document splitting to retrieval-based Q&A.
Official Docs
Intermediate
RAGAS · RAG & Retrieval
An open-source evaluation framework built for RAG, offering reference-free metrics like faithfulness and answer relevance.
Open Source Project
Beginner
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.
Open Source Project
Intermediate
Qdrant · RAG & Retrieval
A high-performance vector database written in Rust, with filtering, quantization, and distributed deployment; thorough docs.
Open Source Project
Intermediate
pgvector · RAG & Retrieval
A vector similarity extension for PostgreSQL that adds embeddings search to a standard database, with minimal ops overhead.
Open Source Project
Advanced
Meta AI · RAG & Retrieval
An open-source vector search library from Meta that stays fast at billion scale — a standard tool in algorithm research.
Open Source Project
Intermediate
UKPLab · RAG & Retrieval
The most popular sentence embeddings library, with hundreds of pretrained models and tasks like similarity computation and reranking.
Tool & Platform
Intermediate
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.
Open Source Project
Advanced
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.
Paper
Advanced
Gao 等 · RAG & Retrieval
A fairly comprehensive RAG survey covering the paradigms and evaluation methods of naive, advanced, and modular RAG.
Official Course
Intermediate
DeepLearning.AI · RAG & Retrieval
A hands-on short course on advanced retrieval strategies, reranking, and RAG evaluation methods.
Official Docs
Intermediate
Hugging Face · RAG & Retrieval
A RAG evaluation guide from the Hugging Face Cookbook with copy-paste evaluation workflows and code.
Open Source Project
Intermediate
Grashiya · RAG & Retrieval
A staged RAG learning roadmap repository with curated resources and project ideas, from retrieval basics to production-grade systems.
Tool & Platform
Beginner
LM Studio · Deployment & Serving
A GUI tool for running LLMs locally, with one-click model downloads and local chat — beginner friendly.
Open Source Project
Advanced
ggerganov · Deployment & Serving
A pure C/C++ inference engine that runs LLMs even on CPU — one of the de facto standards for local deployment.
Open Source Project
Advanced
Hugging Face · Deployment & Serving
Hugging Face's official inference serving framework with continuous batching and tensor parallelism, built for API-style deployment.
Official Docs
Beginner
Gradio · Deployment & Serving
A Python library for ML demo interfaces — wrap a model into a shareable web app in a few lines.
Official Docs
Beginner
Streamlit · Deployment & Serving
A pure-Python framework for interactive web apps — a popular pick for AI prototypes and internal tools.
Open Source Project
Intermediate
MLflow · Deployment & Serving
An open-source MLOps platform covering the full lifecycle: experiment tracking, model registry, and deployment management.
Free Tutorial
Intermediate
Goku Mohandas · Deployment & Serving
A production-oriented ML course covering the full engineering loop: features, training, deployment, and monitoring.
Official Course
Intermediate
Full Stack Deep Learning · Deployment & Serving
A university-backed full-stack deep learning course spanning the whole engineering pipeline from data to deployment.
Official Docs
Intermediate
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.
Official Docs
Intermediate
Hugging Face · Deployment & Serving
Hugging Face's unified inference API docs — one endpoint to call hosted models from multiple providers.
Open Source Project
Intermediate
dswh · Deployment & Serving
A three-stage learning roadmap repository from LLM API basics to LLMOps, with a long list of project ideas.
Tool & Platform
Intermediate
Kaggle · Hands-on Projects
A data science competition community with real datasets and leaderboards — a great arena to test your skills after the basics.
Open Source Project
Beginner
GitHub 社区 · Hands-on Projects
A project tutorial collection organized by language, each with clear goals and steps — learn by doing.
Open Source Project
Advanced
codecrafters · Hands-on Projects
A big collection of tutorials for building technologies from scratch — databases, editors, neural network engines, and other hardcore projects.
Open Source Project
Intermediate
Shubham Saboo · Hands-on Projects
A collection of LLM projects organized by use case, with runnable examples for RAG, agent, and multimodal apps.
Open Source Project
Intermediate
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.
Open Source Project
Intermediate
Maxime Labonne · Hands-on Projects
A curated collection of fine-tuning-ready datasets, organized by conversation, instruction, and preference types, with quality notes.
Official Course
Intermediate
Hugging Face · Multimodal & AIGC
Hugging Face's official audio course covering hands-on speech recognition, classification, and text-to-speech.
Official Course
Intermediate
Hugging Face · Multimodal & AIGC
Hugging Face's official vision course, from image classification to detection and segmentation, with code that runs right in Spaces.
Official Course
Intermediate
Hugging Face · Multimodal & AIGC
A systematic course on diffusion models from theory to practice, with generation experiments using the Diffusers library.
Open Source Project
Advanced
CompVis · Multimodal & AIGC
The original Stable Diffusion research repo with model architecture and inference code — first-hand material for understanding diffusion generation.
Open Source Project
Intermediate
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.
Open Source Project
Beginner
Nomic AI · Open Source & Tools
A local LLM ecosystem that runs on consumer hardware, with a model marketplace and desktop app — privacy friendly.
Open Source Project
Beginner
LobeHub · Open Source & Tools
A modern open-source chat UI framework supporting multiple model providers and plugins, easy to deploy.
Open Source Project
Intermediate
LibreChat · Open Source & Tools
An all-in-one open-source chat platform that connects OpenAI, Anthropic, and local models, with multi-user support.
Open Source Project
Beginner
Mintplex Labs · Open Source & Tools
A local-first document Q&A app — upload files and start chatting; great for quickly testing RAG ideas.
Newsletter
Beginner
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.
Newsletter
Intermediate
Simon Willison · Community & News
A veteran developer's personal blog, widely read for its prompt injection and engineering posts, with frequent updates.
Newsletter
Beginner
机器之心 · Community & News
A veteran Chinese AI media outlet covering research progress, industry news, and interviews, with frequent updates.
Newsletter
Beginner
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.
Newsletter
Intermediate
Reddit · Community & News
Reddit's most active local LLM community, packed with first-hand info on quantization, deployment, and model benchmarks.
Open Source Project
Beginner
mohabdelkarim · Community & News
A free AI resource collection organized around learning roadmaps, with courses, books, and tools labeled by difficulty.
Tool & Platform
Beginner
OpenAI · AI Chat Assistants
OpenAI's conversational product — the free tier is enough to try mainstream model capabilities, and it is most people's first stop with AI.
Tool & Platform
Beginner
Anthropic · AI Chat Assistants
Anthropic's conversational product, well regarded for long context and coding; the free tier works for daily use.
Tool & Platform
Beginner
Perplexity · AI Learning & Research
An AI-native search engine whose answers cite sources — handy for quickly verifying questions that come up while studying.
Tool & Platform
Intermediate
Groq · Tools & API Platforms
Groq's inference cloud runs open models at extreme speed, with free credits on signup.
Tool & Platform
Beginner
Google · Tools & API Platforms
Google's model playground: call Gemini models and debug prompts right in the browser, with a friendly free tier.
Tool & Platform
Intermediate
OpenRouter · Tools & API Platforms
A unified LLM API gateway — one key for hundreds of models, some of them free.
Tool & Platform
Intermediate
Together · Tools & API Platforms
A cloud platform for serving open models, with serverless and dedicated endpoints plus trial credits on signup.
Official Docs
Intermediate
Cloudflare · Tools & API Platforms
Docs for running models on Cloudflare's edge, deeply integrated with the Workers ecosystem, with a free tier.
Open Source Project
Intermediate
BerriAI · Tools & API Platforms
A proxy SDK that calls 100+ LLMs in the OpenAI format, with built-in retries, budgets, and logging.
Open Source Project
Intermediate
Jason Liu · Tools & API Platforms
A Pydantic-based structured output library with solid retry and validation — a great companion for function calling.
Tool & Platform
Beginner
Google · AI Chat Assistants
Google's AI assistant, deeply integrated with Search, Gmail and Docs, with strong image and video understanding. The free tier covers mainstream models; deep research and other advanced features need a subscription.
Tool & Platform
Beginner
腾讯 · AI Chat Assistants
Tencent's AI assistant, powered by both DeepSeek and Hunyuan models, with WeChat article and PDF document parsing. Free to use.
Tool & Platform
Beginner
阿里巴巴 · AI Chat Assistants
Alibaba's AI assistant, backed by the Qwen series — the largest open model family in China. Handles long documents, images and code; free to use.
Tool & Platform
Beginner
百度 · AI Chat Assistants
Baidu's AI assistant built on the ERNIE models — solid at Chinese knowledge Q&A and copywriting, wired into Baidu Search and the Wenku ecosystem. Free to use.
Tool & Platform
Beginner
智谱 AI · AI Chat Assistants
Zhipu's chat product with open-weight GLM models; supports long text, code and data analysis. Free to use.
Tool & Platform
Beginner
科大讯飞 · AI Chat Assistants
iFlytek's AI assistant with broad education and office features and standout speech recognition and synthesis. Free to use.
Tool & Platform
Beginner
昆仑万维 · AI Chat Assistants
Kunlun Wanwei's AI assistant, strong at search and long-document reading. Free to use.
Tool & Platform
Beginner
微软 · AI Chat Assistants
Microsoft's AI assistant, deeply integrated with Bing, Edge and Office. The free tier covers basic GPT-series quota — zero cost to start.
Tool & Platform
Beginner
xAI · AI Chat Assistants
xAI's chat assistant wired into real-time X data — fast on trending topics, with a limited free tier.
Tool & Platform
Beginner
Quora · AI Chat Assistants
Quora's multi-model aggregator: one account to try GPT, Claude, Gemini and other leading models, with free daily points.
Tool & Platform
Beginner
腾讯 · AI Video Generators
Tencent Hunyuan's video module — realistic detail and strong shot transitions, Chinese and English prompts supported. Free tier: 50 5-second 720P generations per month, watermarked.
Tool & Platform
Beginner
生数科技 · AI Video Generators
Shengshu Technology's video tool — excellent at anime and stylized output, with multi-shot generation. Free daily credits; watermarked.
Tool & Platform
Beginner
爱诗科技 · AI Video Generators
AIshe Technology's video platform — rich templates and fun effects, multi-shot and native audio support. Free daily credits; watermarked.
Tool & Platform
Beginner
Runway · AI Video Generators
The veteran AI video tool with a polished pro editing workflow — motion brush, camera controls and more. Free tier is one-time credits, watermarked; good for trying out.
Tool & Platform
Beginner
Pika Labs · AI Video Generators
Known for creative effects — crush, melt, inflate and other unique tricks, generated fast. Free tier has monthly credits and allows commercial use; quality ceiling is lower.
Tool & Platform
Beginner
Luma AI · AI Video Generators
A video tool with cinematic camera moves and strong physics — great for B-roll and atmospheric shots. Free tier has limited monthly generations.
Tool & Platform
Beginner
Google · AI Video Generators
Google's video creation tool powered by the Veo model — quality and prompt adherence at the top of the free tier. Free daily credits.
Tool & Platform
Beginner
Haiper AI · AI Video Generators
A video tool with a generous free quota — good for quickly testing ideas and practicing prompts; quality and realism trail the leaders.
Tool & Platform
Beginner
Genmo · AI Video Generators
A stylized animation and video tool with a distinct artistic look — good for creative experiments and concept design. Free tier has limited daily duration.
Tool & Platform
Beginner
字节跳动 · AI Video Generators
ByteDance's video editor — AI subtitles, smart cutout and text-to-video all free and polished. The final editing stop of any AI video workflow, with the most tutorials around.
Tool & Platform
Intermediate
阿里巴巴 · AI Video Generators
Alibaba's open video generation model — fully open weights and code, deployable locally, watermark-free and commercial-friendly. A great textbook for learning video generation.
Tool & Platform
Intermediate
Stability AI · AI Video Generators
Stability AI's open image-to-video model with a permissive license and rich community tutorials — good for local experiments and learning video generation details.
Tool & Platform
Beginner
LiblibAI · AI Image & Design
China's largest Stable Diffusion model community — 100k+ models and LoRAs free to download, with online generation and training. Free tier includes daily compute credits.
Tool & Platform
Beginner
Midjourney · AI Image & Design
The quality and aesthetics benchmark for image generation — no free tier, subscription only. Listed for comparison: study how top tools handle composition and light.
Tool & Platform
Intermediate
Stability AI · AI Image & Design
The synonym for open image generation — open weights, endless plugins and tutorials, deployable locally. The first choice for learning AI art principles.
Tool & Platform
Beginner
Leonardo · AI Image & Design
A popular overseas AI art platform with daily free credits and a rich set of built-in models and styles — good for game art and concept design.
Tool & Platform
Beginner
Ideogram · AI Image & Design
Known for accurate text rendering in images — great for posters and logos. Free tier is daily-limited.
Tool & Platform
Beginner
Recraft · AI Image & Design
A designer-oriented vector and illustration generator that outputs SVG with strong style consistency — good for brand visuals. Free tier has a daily quota.
Tool & Platform
Beginner
美图 · AI Image & Design
Meitu's AI design platform — product shots, posters and e-commerce templates, usable on the free tier, ready out of the box.
Tool & Platform
Beginner
稿定 · AI Image & Design
Gaoding's AI design tool, tightly coupled with templates and marketing scenarios — full coverage of e-commerce and social assets. Free tier has quota.
Tool & Platform
Beginner
美图 · AI Image & Design
Meitu's AI image creation tool — text-to-image, editing and expansion, friendly to Chinese prompts. Free tier usable.
Tool & Platform
Beginner
Canva · AI Image & Design
The world's popular online design tool — AI image generation plus layout in one, and the free tier is enough for decks, posters and social graphics.
Tool & Platform
Beginner
Civitai · AI Image & Design
One of the largest open model sharing communities — tons of Checkpoints and LoRAs to download, plus an online generator. A must-bookmark for the SD ecosystem.
Tool & Platform
Beginner
SeaArt · AI Image & Design
A model-rich AI art community with daily free credits — similar in spirit to Liblib, good for trying different style models.
Tool & Platform
Beginner
insMind · AI Image & Design
A free AI image editing toolkit — cutout, eraser, upscale and background swap, all online with no install. Enough for everyday image tasks.
Tool & Platform
Beginner
GitHub · AI Coding Tools
The most installed AI coding assistant, deeply integrated with VS Code. Free tier has limited monthly completions and chat; students and open-source maintainers can apply for free Pro.
Tool & Platform
Beginner
字节跳动 · AI Coding Tools
ByteDance's AI IDE with friendly Chinese interaction, built-in multi-model switching, and a Builder mode that generates whole projects from a prompt. Free for individuals.
Tool & Platform
Intermediate
Anthropic · AI Coding Tools
Anthropic's command-line coding agent — cross-file refactors, batch code changes and automation tasks from the terminal. Needs a subscription or API credits.
Tool & Platform
Intermediate
OpenAI · AI Coding Tools
OpenAI's coding agent — runs coding tasks in parallel in the cloud, tied to the ChatGPT subscription, good for batch tasks and code review.
Tool & Platform
Intermediate
Zed Industries · AI Coding Tools
An open, high-performance editor with unlimited free local AI completion and limited weekly remote model requests — the only free-tier AI editor that doesn't punish local development.
Tool & Platform
Intermediate
阿里巴巴 · AI Coding Tools
Alibaba's agentic coding platform — Quest mode autonomously handles the full flow from requirements to code. Has a free quota.
Tool & Platform
Intermediate
AWS · AI Coding Tools
AWS's AI IDE with a spec-driven approach: generate design, tasks and runnable code from requirement docs. Free tier has quota.
Tool & Platform
Beginner
StackBlitz · AI Coding Tools
Generate full-stack apps from one sentence in the browser, with instant preview and one-click deploy — great for validating product ideas fast. Free tier has limited daily tokens.
Tool & Platform
Beginner
Lovable · AI Coding Tools
An AI site builder for non-developers — generate web apps conversationally and publish directly. Free tier is daily-limited.
Tool & Platform
Beginner
Vercel · AI Coding Tools
Vercel's AI UI generator — high-quality React + Tailwind components, deployable directly. Free tier has limited monthly credits.
Tool & Platform
Beginner
AiPPT · AI Productivity
The veteran one-sentence PPT generator — rich templates and stable layout. Free tier can generate; HD export or watermark removal needs membership.
Tool & Platform
Beginner
Gamma · AI Productivity
A popular overseas AI presentation tool — beautiful web slides with built-in data charts. Free tier has credits; good for shareable online decks.
Tool & Platform
Beginner
Napkin · AI Productivity
Turn text into infographics and flowcharts in one click — a huge efficiency win for reports and doc illustrations. Free tier usable.
Tool & Platform
Beginner
科大讯飞 · AI Productivity
iFlytek's AI document tool — long-form writing, PPT generation and rewriting in one place, with a friendly free quota.
Tool & Platform
Beginner
金山办公 · AI Productivity
AI built into WPS — spreadsheet processing, document summaries and PPT generation, closest to Chinese office workflows. Free tier has quota.
Tool & Platform
Beginner
百度 · AI Productivity
Document library plus AI Q&A — find courseware, exam papers and industry docs fast, and let AI answer based on them. Free tier has quota.
Tool & Platform
Beginner
ChatPPT · AI Productivity
Conversational PPT generation and beautification — can smart-layout and unify style on existing decks. Free tier has limited runs.
Tool & Platform
Beginner
iSlide · AI Productivity
A PPT design plugin — AI unifies fonts, colors and layout in one click. Free tier covers the basics; a real PPT efficiency booster.
Tool & Platform
Beginner
科大讯飞 · AI Productivity
Meeting recording transcription and AI minutes with high Chinese accuracy. Free tier has trial hours.
Tool & Platform
Beginner
阿里巴巴 · AI Productivity
Alibaba's audio/video transcription and summarization — auto-organizes key points and chapters from online classes and meetings. Free tier has quota.
Tool & Platform
Beginner
Udio · AI Audio & Music
An AI music tool with refined audio quality — strong vocals and mixing. Free tier has monthly credits.
Tool & Platform
Beginner
Stability AI · AI Audio & Music
Stability's music and SFX generator — good for scoring and sound assets. Free tier has limited monthly generations.
Tool & Platform
Beginner
ElevenLabs · AI Audio & Music
The most popular AI voice tool — high-quality multilingual TTS and cloning. Free tier: ~10 minutes/month.
Tool & Platform
Beginner
Fish Audio · AI Audio & Music
An open-source-friendly TTS platform with natural Chinese speech, free credits, voice cloning and API access.
Tool & Platform
Intermediate
ChatTTS · AI Audio & Music
An open-source Chinese TTS project with natural conversational speech, deployable locally — good for fine-tuning and learning.
Tool & Platform
Intermediate
Dify · AI Agent Platforms
An open-source LLM app development platform with visual RAG and workflow orchestration, self-hostable, free community edition — a mainstream pick for knowledge bases and agents.
Tool & Platform
Intermediate
n8n · AI Agent Platforms
An open-source automation workflow tool with 400+ app integrations — wire AI into daily automation. Self-hosting is free.
Tool & Platform
Intermediate
FastGPT · AI Agent Platforms
An open-source knowledge-base Q&A platform with out-of-the-box RAG orchestration and visual management, thorough Chinese docs — good for enterprise knowledge bases.
Tool & Platform
Beginner
Zapier · AI Agent Platforms
The largest overseas automation integration platform, connecting thousands of apps; Zapier AI helps design flows. Free tier has limited monthly tasks.
Tool & Platform
Intermediate
Make · AI Agent Platforms
A visual automation platform with canvas-style orchestration of complex flows, strong branching and error handling. Free tier has limited monthly operations.
Tool & Platform
Intermediate
阿里巴巴 · AI Agent Platforms
Alibaba's one-stop LLM development platform — model APIs, knowledge bases and app orchestration, with free credits for new users. The official entry point for Qwen APIs.
Tool & Platform
Beginner
腾讯 · AI Agent Platforms
Tencent's agent platform — low-code building with publishing into the WeChat ecosystem. Free tier usable; the official channel for WeChat mini-program agents.
Tool & Platform
Beginner
百度 · AI Agent Platforms
Baidu's agent creation and distribution platform — build agents and distribute them to Baidu Search and ERNIE Bot. Building is free.
Tool & Platform
Beginner
Flowith · AI Agent Platforms
A canvas-style AI creation tool with multi-threaded chats and knowledge-base management — good for deep research and content production. Free tier has quota.
Tool & Platform
Beginner
秘塔科技 · AI Learning & Research
An ad-free AI search that aggregates academic and web sources with citations — good for papers and research. Free to use.
Tool & Platform
Beginner
沉浸式翻译 · AI Learning & Research
A bilingual side-by-side browser translation extension — the tool for reading English docs, papers and subtitles. Core features free; the standard for accessing first-hand English material.
Tool & Platform
Beginner
ChatDOC · AI Learning & Research
A document Q&A tool — upload PDF/Word, ask questions and jump to source paragraphs. Good for papers and contracts. Free tier has quota.
Tool & Platform
Beginner
Felo · AI Learning & Research
An AI search engine that turns results into cited reports, with multilingual search. Free tier is daily-limited.
No matching resources. Try different keywords or relax the filters.