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.

Fundamentals

Iterative DPO and Online Preference Tuning

Iterative DPO repeatedly aligns a language model to human or AI preferences by generating fresh responses, ranking them, and tuning on those new pairs each…

2 min readRead
Fundamentals

Self-Play Fine-Tuning

Self-play fine-tuning improves a model by having it compete against or learn from its own past outputs, generating its own training signal.

2 min readRead
Companies

Mistral Large and Codestral

Mistral AI is a Paris-based lab whose Mistral Large is a flagship general-purpose model and Codestral is a specialized code-generation model.

2 min readRead
Companies

Vercel v0 and AI SDK

Vercel, the company behind Next.js, built v0 (an AI that generates UI from text prompts) and the AI SDK (a TypeScript toolkit for adding AI features to apps).

2 min readRead
Applications

AI in Antibody and Protein Design

AI now helps design proteins and antibodies from scratch, predicting structures and generating novel molecules that bind specific targets.

2 min readRead
Visual AI

LoRA Sliders for Image Editing

LoRA sliders are tiny add-on modules that give you a continuous dial to push a single attribute of an image up or down, like age, smile, or rust, without…

2 min readRead
Visual AI

InstructPix2Pix Instruction Editing

InstructPix2Pix lets you edit a photo by typing a plain command like 'make it winter' or 'turn the cat into a dog', no masks or selection tools required.

2 min readRead
Visual AI

Prompt-to-Prompt Cross-Attention Editing

Prompt-to-Prompt edits a generated image by tweaking its text prompt while reusing the model's internal attention maps, so changing one word swaps…

2 min readRead
Audio AI

Bark Generative Audio Model

Bark is an open-source text-to-audio model from Suno that generates not just speech but laughter, sighs, music, and sound effects directly from text prompts.

2 min readRead
Audio AI

Tortoise TTS Autoregressive Synthesis

Tortoise TTS is an open-source text-to-speech system prized for unusually natural, emotionally rich voices and strong voice cloning from just a few short…

2 min readRead
Audio AI

XTTS Cross-Lingual Voice Cloning

XTTS is Coqui's multilingual text-to-speech model that can clone a voice from a short clip and then speak in many different languages while preserving…

2 min readRead
Visual AI

ESRGAN and GAN Super-Resolution

ESRGAN uses a generator-versus-discriminator contest to invent realistic detail when upscaling images, going beyond blurry interpolation.

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.