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.

Topic tracks

Browse by track

Jump into the area you care about. Every track has multiple plain-English guides.

Full library

All guides

1019 of 1019 guides shown. Filter by track or search above.

Language AI

Constrained Decoding

Constrained decoding forces a language model to generate output that follows strict rules — like valid JSON, a regex pattern, or a fixed set of choices…

2 min readRead
Language AI

Logit Bias

Logit bias is a knob that nudges a language model toward or away from specific tokens by adding a fixed number to their scores before the model picks…

2 min readRead
Language AI

KV Cache

The KV cache stores the key and value vectors a transformer has already computed for previous tokens, so it doesn't have to recompute them for every new word…

2 min readRead
Visual AI

YOLO Real-Time Detection

YOLO (You Only Look Once) is a family of object detection models that find and label every object in an image with a single neural network pass, fast enough…

2 min readRead
Visual AI

Panoptic Segmentation

Panoptic segmentation gives every single pixel in an image a label, unifying 'what is this region' with 'which specific object is this.

2 min readRead
Visual AI

Human Pose Estimation

Human pose estimation detects the positions of body joints, such as elbows, knees, and shoulders, to build a digital skeleton of a person from images…

2 min readRead
Industries

AI in Clinical Documentation

AI tools listen to doctor-patient conversations and automatically draft clinical notes, freeing clinicians from hours of typing.

2 min readRead
Industries

AI in Genomics

AI analyzes the vast, complex data in DNA to predict gene function, interpret mutations, and accelerate discovery.

2 min readRead
Industries

AI in Mental Health Care

AI powers chatbots, screening tools, and clinician support that expand access to mental health support amid a global shortage of providers.

2 min readRead
Language AI

Jailbreaking and Red-Teaming

Jailbreaking is the practice of crafting prompts that trick an AI model into ignoring its safety rules, while red-teaming is the organized effort to find…

2 min readRead
Language AI

Test-Time Compute Scaling

Test-time compute scaling means giving a model more thinking time and computation when it answers a question, rather than only making it bigger during…

2 min readRead
Language AI

Agentic Tool Orchestration

Agentic tool orchestration is how an AI model plans and chains together external tools, like search engines, code runners, databases, and APIs, to accomplish…

2 min readRead

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.