# AI Understanding

> AI Understanding is a 501(c)(3) nonprofit (EIN 41-3273048) providing free,
> world-class AI education: plain-language guides, daily AI news, a curated
> directory of AI tools, quizzes, an AI glossary, sourced statistics, and a
> verified AI Education Certificate.

All content is free to read and free to cite with attribution and a link to
the source URL. Statistics pages are licensed CC BY 4.0. Full plain-text corpus: https://aiunderstanding.org/llms-full.txt

## Start here
- [Mission](https://aiunderstanding.org/mission): What we do and why we exist.
- [Editorial Standards](https://aiunderstanding.org/editorial-standards): How we research and publish.
- [Corrections](https://aiunderstanding.org/corrections): Public correction log.
- [Cite AI Understanding](https://aiunderstanding.org/cite): Canonical organization block and quotable definitions.
- [Research & Public Datasets](https://aiunderstanding.org/research): Original statistics, methods, JSON, and CSV.
- [AI News Observatory](https://aiunderstanding.org/research/ai-news-observatory): Live, reproducible statistics from the verified news archive.
- [Observatory Methodology](https://aiunderstanding.org/research/ai-news-observatory/methodology): Definitions, calculations, limits, corrections, and version history.
- [Contact](https://aiunderstanding.org/contact): Reach the editorial team.

## News
- [AI News Hub](https://aiunderstanding.org/news): Daily, noise-free AI news.
- [RSS feed](https://aiunderstanding.org/feed.xml)
- [Google News sitemap](https://aiunderstanding.org/news-sitemap.xml)
- [Image sitemap](https://aiunderstanding.org/image-sitemap.xml)
- [Flipboard publisher feed](https://aiunderstanding.org/flipboard.xml)
- [Apple News Format catalog](https://aiunderstanding.org/apple-news/feed.json)
- [AI News Observatory JSON](https://aiunderstanding.org/api/research/ai-news-observatory)
- [AI News Observatory CSV](https://aiunderstanding.org/research/ai-news-observatory.csv)

## Guides (3000 free AI guides)
- [All guides](https://aiunderstanding.org/learn): browsable hub with categories and learning paths.
- [Complete guide catalog](https://aiunderstanding.org/llms-guides.txt): every guide, grouped by category, one line each.

### Fundamentals (134)
- [What is AI?](https://aiunderstanding.org/learn/what-is-ai)
- [How AI Learns](https://aiunderstanding.org/learn/how-ai-learns)
- [Neural Networks](https://aiunderstanding.org/learn/neural-networks)
- [Deep Learning](https://aiunderstanding.org/learn/deep-learning)
- [AI Training](https://aiunderstanding.org/learn/ai-training)
- …129 more in the [guide catalog](https://aiunderstanding.org/llms-guides.txt)

### Language AI (272)
- [ChatGPT & LLMs](https://aiunderstanding.org/learn/chatgpt-llms)
- [NLP Basics](https://aiunderstanding.org/learn/nlp-basics)
- [Transformers](https://aiunderstanding.org/learn/transformers)
- [Prompt Engineering](https://aiunderstanding.org/learn/prompt-engineering)
- [AI Writing Tools](https://aiunderstanding.org/learn/ai-writing)
- …267 more in the [guide catalog](https://aiunderstanding.org/llms-guides.txt)

### Visual AI (298)
- [AI Image Generation](https://aiunderstanding.org/learn/ai-image-generation)
- [Computer Vision](https://aiunderstanding.org/learn/computer-vision)
- [AI Video](https://aiunderstanding.org/learn/ai-video)
- [AI & 3D](https://aiunderstanding.org/learn/ai-3d)
- [AI & Creativity](https://aiunderstanding.org/learn/ai-creativity)
- …293 more in the [guide catalog](https://aiunderstanding.org/llms-guides.txt)

### Audio AI (188)
- [Voice AI](https://aiunderstanding.org/learn/voice-ai)
- [AI Music](https://aiunderstanding.org/learn/ai-music)
- [AI Podcasting](https://aiunderstanding.org/learn/ai-podcasting)
- [Voice Cloning](https://aiunderstanding.org/learn/voice-cloning)
- [Audio Enhancement](https://aiunderstanding.org/learn/audio-enhancement)
- …183 more in the [guide catalog](https://aiunderstanding.org/llms-guides.txt)

### Companies (145)
- [OpenAI](https://aiunderstanding.org/learn/openai)
- [Anthropic](https://aiunderstanding.org/learn/anthropic)
- [Google AI](https://aiunderstanding.org/learn/google-ai)
- [Meta AI](https://aiunderstanding.org/learn/meta-ai)
- [Microsoft AI](https://aiunderstanding.org/learn/microsoft-ai)
- …140 more in the [guide catalog](https://aiunderstanding.org/llms-guides.txt)

### Applications (761)
- [AI Assistants](https://aiunderstanding.org/learn/ai-assistants)
- [AI Agents](https://aiunderstanding.org/learn/ai-agents)
- [AI Search](https://aiunderstanding.org/learn/ai-search)
- [AI Coding](https://aiunderstanding.org/learn/ai-coding)
- [AI in Gaming](https://aiunderstanding.org/learn/ai-gaming)
- …756 more in the [guide catalog](https://aiunderstanding.org/llms-guides.txt)

### Industries (244)
- [AI in Healthcare](https://aiunderstanding.org/learn/ai-healthcare)
- [AI in Finance](https://aiunderstanding.org/learn/ai-finance)
- [AI in Education](https://aiunderstanding.org/learn/ai-education)
- [AI in Science](https://aiunderstanding.org/learn/ai-science)
- [AI & Climate](https://aiunderstanding.org/learn/ai-climate)
- …239 more in the [guide catalog](https://aiunderstanding.org/llms-guides.txt)

### Technical (536)
- [AI Benchmarks](https://aiunderstanding.org/learn/ai-benchmarks)
- [AI Chips & Hardware](https://aiunderstanding.org/learn/ai-chips)
- [Reinforcement Learning](https://aiunderstanding.org/learn/reinforcement-learning)
- [AI & Robotics](https://aiunderstanding.org/learn/ai-robotics)
- [Fine-Tuning](https://aiunderstanding.org/learn/fine-tuning)
- …531 more in the [guide catalog](https://aiunderstanding.org/llms-guides.txt)

### Society (422)
- [AI Bias](https://aiunderstanding.org/learn/ai-bias)
- [AI & Privacy](https://aiunderstanding.org/learn/ai-privacy)
- [AI & Copyright](https://aiunderstanding.org/learn/ai-copyright)
- [AI Safety](https://aiunderstanding.org/learn/ai-safety)
- [Artificial General Intelligence](https://aiunderstanding.org/learn/agi)
- …417 more in the [guide catalog](https://aiunderstanding.org/llms-guides.txt)

## Statistics (sourced, dated, CC BY 4.0)
- [AI Statistics 2026: Adoption, Spend & Growth](https://aiunderstanding.org/stats/ai-statistics-2026): 15 essential AI statistics for 2026 covering adoption, enterprise spend, model capability, jobs impact, and growth — all sourced and dated.
- [ChatGPT Statistics 2026: Users, Revenue & Usage](https://aiunderstanding.org/stats/chatgpt-statistics-2026): 50+ ChatGPT statistics: users, revenue, traffic, demographics, and enterprise adoption — all sourced and dated.
- [AI Jobs Statistics 2026: Demand, Salaries & Displacement](https://aiunderstanding.org/stats/ai-jobs-statistics-2026): AI jobs statistics for 2026: which roles are growing, average salaries, displacement risk, and remote-vs-onsite trends.
- [AI Adoption Statistics 2026: Enterprise & Consumer](https://aiunderstanding.org/stats/ai-adoption-statistics-2026): AI adoption statistics for 2026: enterprise deployment rates, consumer usage, industry-by-industry breakdown, and ROI evidence.
- [AI Image Generation Statistics 2026](https://aiunderstanding.org/stats/ai-image-generation-statistics-2026): AI image generation statistics: Midjourney, DALL-E, Stable Diffusion user counts, revenue, and total images created.

## Glossary (213 defined AI terms)
- [AI Glossary](https://aiunderstanding.org/glossary)

## Quizzes (3000)
- [All quizzes](https://aiunderstanding.org/quizzes)
- [AI Education Certificate](https://aiunderstanding.org/certification)

## Tools
- [AI Tools Directory](https://aiunderstanding.org/tools)
- [Tool Comparisons](https://aiunderstanding.org/tools/compare)
- [Prompt Refiner Sandbox](https://aiunderstanding.org/tools/prompt-refiner)

## Authors
- [Editorial team](https://aiunderstanding.org/authors)
- [AI Understanding Editorial](https://aiunderstanding.org/authors/editorial)
- [AI Understanding Research Desk](https://aiunderstanding.org/authors/research-desk)
- [AI Understanding Tools Desk](https://aiunderstanding.org/authors/tools-desk)
- [Alex Gonzalez](https://aiunderstanding.org/authors/alex-gonzalez)

## Optional
- [Jobs board](https://aiunderstanding.org/jobs)
- [Blog](https://aiunderstanding.org/blog)
- [Donate](https://aiunderstanding.org/donate)

## Citation
Cite as: AI Understanding (aiunderstanding.org), a 501(c)(3) nonprofit. Please
link to the source URL you used.