01
AI Foundations
Understand what AI is, how systems learn, where they fail, and how to judge claims without hype.
Free AI library
Learn AI.Free forever.
1019 plain-English guides, structured learning paths, and an open library — built by an independent 501(c)(3) nonprofit so anyone can understand modern AI.
1019Free guides
9Topic tracks
~2 minPer guide
~34hReading time
Start here
Five outcome-based courses
Each course includes explicit outcomes, mapped competencies, practice activities, and an applied capstone.
02
Responsible AI User
Use AI productively while protecting privacy, checking outputs, and preserving human accountability.
03
AI at Work
Evaluate workplace use cases, run safe pilots, measure value, and communicate changes responsibly.
04
AI Policy & Society
Analyze AI systems through rights, equity, governance, safety, and public-interest outcomes.
05
Building with AI Systems
Understand language models, retrieval, agents, evaluation, cost, and deployment safeguards through practical system design.
Topic tracks
Browse by track
Jump into the area you care about. Every track has multiple plain-English guides.
FundamentalsCore concepts: how AI works at a high level.84 guides Language AILLMs, NLP, ChatGPT, prompting, and text understanding.155 guides Visual AIImage generation, computer vision, video, and design.133 guides Audio AIVoice, music, podcasting, and audio-first AI.117 guides CompaniesProfiles of OpenAI, Anthropic, Google, Meta, and more.121 guides ApplicationsHow AI shows up in coding, search, agents, and daily life.111 guides IndustriesAI in healthcare, finance, education, energy, and more.91 guides TechnicalChips, fine-tuning, RAG, vectors, and AI infrastructure.177 guides SocietyBias, privacy, copyright, safety, and the AI future.30 guides
Full library
All guides
1019 of 1019 guides shown. Filter by track or search above.
Visual AI
Custom Diffusion Multi-Concept Tuning
Custom Diffusion is a lightweight fine-tuning method that teaches a text-to-image model new personal concepts, like your dog or a specific chair, from just…
Visual AILatent Blending and Image Interpolation
Latent blending mixes images by combining their compressed representations inside a model's latent space rather than averaging raw pixels.
CompaniesWhat Is a Liquid Foundation Model? Liquid AI LFM Guide
What is a liquid foundation model? Learn how Liquid AI's non-Transformer LFMs work, use less memory, and differ from standard AI architectures.
CompaniesReka AI Multimodal Models
Reka AI is a research company building natively multimodal models that understand text, images, video, and audio together.
CompaniesSakana AI Evolutionary Model Merging
Sakana AI is a Tokyo-based lab that applies nature-inspired methods to AI, most notably using evolutionary algorithms to merge existing open models into new…
CompaniesAugment Code
Augment Code is an AI coding platform built specifically for large, real-world codebases, not toy demos.
CompaniesSierra AI Customer Experience Agents
Sierra is a company founded by Bret Taylor and Clay Bavor that builds branded AI agents to handle customer service for businesses.
CompaniesDecagon Support Agents
Decagon builds AI support agents that companies use to automate customer service conversations at scale.
Audio AIWhisper Timestamped Word Alignment
Whisper word alignment pins each transcribed word to an exact start and end time in the audio.
Audio AIMusic Tagging with Transformers
Music tagging uses transformer models to listen to a song and predict descriptive labels like genre, mood, instruments, and tempo.
Audio AIOnset Detection in Audio
Onset detection finds the precise moments when notes, beats, or sounds begin in an audio signal.
Language AIConstituency Parsing
Constituency parsing breaks a sentence into nested phrases like noun phrases and verb phrases, revealing its grammatical structure as a tree.
Finished reading? Prove it.
Check what you learned with topic quizzes, then explore our structured courses and current certification requirements. Core guides remain free to read.