01
AI Foundations
Understand what AI is, how systems learn, where they fail, and how to judge claims without hype.
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117 plain-English guides, structured learning paths, and an open library — built by an independent 501(c)(3) nonprofit so anyone can understand modern AI.
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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.
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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
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Audio AI
DiffWave Diffusion Vocoder
DiffWave is a diffusion-based vocoder that synthesizes audio by iteratively denoising random noise into a waveform, conditioned on a mel-spectrogram.
Audio AIBark 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.
Audio AITortoise 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…
Audio AIXTTS 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…
Audio AISoundStorm Parallel Audio Generation
SoundStorm is a Google audio generation model that produces speech and sound in parallel rather than one token at a time, making high-quality audio synthesis…
Audio AIAudioGen Text-to-Audio Synthesis
AudioGen is a Meta model that turns text descriptions into realistic environmental sounds and sound effects, like 'dog barking while birds chirp.
Audio AIStable Audio Latent Diffusion
Stable Audio is Stability AI's text-to-audio system that uses latent diffusion to generate music and sound effects, with explicit control over clip length.
Audio AIKaldi Speech Recognition Toolkit
Kaldi is a free, open-source toolkit that became the dominant research platform for building speech recognition systems.
Audio AIWav2Letter Convolutional ASR
Wav2Letter is an end-to-end speech recognition system from Facebook AI that used only convolutional neural networks, no recurrence.
Audio AIJasper and QuartzNet ASR
Jasper and QuartzNet are NVIDIA's end-to-end convolutional speech recognition models, with QuartzNet being a dramatically smaller, efficient redesign…
Audio AIDiffusion Models for Audio
Diffusion models generate audio by learning to reverse a step-by-step noising process, turning random noise into coherent speech, music, or sound effects.
Audio AISound Event Detection
Sound event detection (SED) identifies what sounds occur in an audio stream and exactly when they start and stop.
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