# AI Wiki > AI Wiki (https://aiwiki.ai) is a free, open encyclopedia of artificial intelligence with 3,993 factual, citation-backed articles covering AI concepts, models, companies, people, hardware, benchmarks, and policy. Every article is also available as raw Markdown by appending /raw to its URL, for example https://aiwiki.ai/wiki/large_language_model/raw. The complete machine-readable list of all articles with last-modified dates is the XML sitemap at https://aiwiki.ai/sitemap.xml. Article text is licensed CC BY 4.0 (https://aiwiki.ai/license): reuse it freely, including for AI training and answering, with attribution to "AI Wiki (aiwiki.ai)". Machine access, in order of convenience: full text of the most-referenced articles in one file at https://aiwiki.ai/llms-full.txt; a read-only MCP server (search + fetch tools) at https://aiwiki.ai/api/mcp/mcp (setup guide: https://aiwiki.ai/mcp); per-article Markdown at /raw. ## Key articles - [Artificial Intelligence](https://aiwiki.ai/wiki/artificial_intelligence) - [Large Language Model](https://aiwiki.ai/wiki/large_language_model) - [Machine Learning](https://aiwiki.ai/wiki/machine_learning) - [Deep Learning](https://aiwiki.ai/wiki/deep_learning) - [Neural Network](https://aiwiki.ai/wiki/neural_network) - [Transformer](https://aiwiki.ai/wiki/transformer) - [Generative AI](https://aiwiki.ai/wiki/generative_ai) - [Natural language processing](https://aiwiki.ai/wiki/natural_language_processing) - [Computer vision](https://aiwiki.ai/wiki/computer_vision) - [Reinforcement learning](https://aiwiki.ai/wiki/reinforcement_learning) - [Diffusion model](https://aiwiki.ai/wiki/diffusion_model) - [ChatGPT](https://aiwiki.ai/wiki/chatgpt) - [Claude (language model)](https://aiwiki.ai/wiki/claude) - [Gemini (language model)](https://aiwiki.ai/wiki/gemini) - [OpenAI](https://aiwiki.ai/wiki/openai) - [Anthropic](https://aiwiki.ai/wiki/anthropic) - [Google DeepMind](https://aiwiki.ai/wiki/google_deepmind) - [Prompt Engineering](https://aiwiki.ai/wiki/prompt_engineering) - [AI safety](https://aiwiki.ai/wiki/ai_safety) - [AI Alignment](https://aiwiki.ai/wiki/ai_alignment) ## Browse by topic - [Machine Learning](https://aiwiki.ai/categories/Machine%20Learning): 846 articles - [AI Companies](https://aiwiki.ai/categories/AI%20Companies): 617 articles - [Large Language Models](https://aiwiki.ai/categories/Large%20Language%20Models): 482 articles - [Robotics](https://aiwiki.ai/categories/Robotics): 395 articles - [AI Models](https://aiwiki.ai/categories/AI%20Models): 380 articles - [Open Source AI](https://aiwiki.ai/categories/Open%20Source%20AI): 369 articles - [Deep Learning](https://aiwiki.ai/categories/Deep%20Learning): 332 articles - [Humanoid Robots](https://aiwiki.ai/categories/Humanoid%20Robots): 325 articles - [Artificial Intelligence](https://aiwiki.ai/categories/Artificial%20Intelligence): 272 articles - [AI Tools & Products](https://aiwiki.ai/categories/AI%20Tools%20%26%20Products): 263 articles - [Natural Language Processing](https://aiwiki.ai/categories/Natural%20Language%20Processing): 236 articles - [Developer Tools](https://aiwiki.ai/categories/Developer%20Tools): 232 articles - [Generative AI](https://aiwiki.ai/categories/Generative%20AI): 232 articles - [AI Hardware](https://aiwiki.ai/categories/AI%20Hardware): 231 articles - [People](https://aiwiki.ai/categories/People): 229 articles - [AI Benchmarks](https://aiwiki.ai/categories/AI%20Benchmarks): 222 articles - [AI Agents](https://aiwiki.ai/categories/AI%20Agents): 218 articles - [AI Safety](https://aiwiki.ai/categories/AI%20Safety): 218 articles - [Chinese AI](https://aiwiki.ai/categories/Chinese%20AI): 215 articles - [AI Infrastructure](https://aiwiki.ai/categories/AI%20Infrastructure): 214 articles - [Computer Vision](https://aiwiki.ai/categories/Computer%20Vision): 188 articles - [OpenAI](https://aiwiki.ai/categories/OpenAI): 166 articles - [Training & Optimization](https://aiwiki.ai/categories/Training%20%26%20Optimization): 137 articles - [Robotics Companies](https://aiwiki.ai/categories/Robotics%20Companies): 131 articles - [ChatGPT](https://aiwiki.ai/categories/ChatGPT): 122 articles - [Model Evaluation](https://aiwiki.ai/categories/Model%20Evaluation): 120 articles - [Neural Networks](https://aiwiki.ai/categories/Neural%20Networks): 116 articles - [Reinforcement Learning](https://aiwiki.ai/categories/Reinforcement%20Learning): 107 articles - [Data & Datasets](https://aiwiki.ai/categories/Data%20%26%20Datasets): 104 articles - [AI Code Generation](https://aiwiki.ai/categories/AI%20Code%20Generation): 101 articles - [Google DeepMind](https://aiwiki.ai/categories/Google%20DeepMind): 96 articles - [Statistics](https://aiwiki.ai/categories/Statistics): 95 articles - [Multimodal AI](https://aiwiki.ai/categories/Multimodal%20AI): 93 articles - [Meta AI](https://aiwiki.ai/categories/Meta%20AI): 93 articles - [NVIDIA](https://aiwiki.ai/categories/NVIDIA): 92 articles - [Google](https://aiwiki.ai/categories/Google): 92 articles - [Anthropic](https://aiwiki.ai/categories/Anthropic): 92 articles - [AI Policy & Regulation](https://aiwiki.ai/categories/AI%20Policy%20%26%20Regulation): 84 articles - [Image Generation](https://aiwiki.ai/categories/Image%20Generation): 77 articles - [AI Ethics](https://aiwiki.ai/categories/AI%20Ethics): 75 articles ## Full index - [All articles](https://aiwiki.ai/wiki) - [All categories](https://aiwiki.ai/categories) - [Sitemap (XML)](https://aiwiki.ai/sitemap.xml) - [Recent changes](https://aiwiki.ai/recent) - [RSS feed](https://aiwiki.ai/feed.xml)