Term tag: Generative AI

Classifier-Free Guidance (CFG)

Classifier-free guidance (CFG) is how a diffusion model follows a prompt: each step runs the model with and without the prompt and extrapolates the gap.

Deepfake

AI-synthesized video, image or audio that makes a real person appear to say or do something they never did — how deepfakes are made, and how they are caught.

Diffusion Model

A generative model that learns to undo a fixed noising process — what the network really predicts, why the step count is the cost, and why it displaced GANs.

Generative Adversarial Network (GAN)

Two networks trained against each other: one invents data, the other judges it. The generator never sees a real example — only the judge's verdict.

Generative AI

Generative AI learns the probability distribution its training data came from, well enough to draw new samples from it — not just sort inputs into classes.

Generative Engine Optimization (GEO)

GEO — also called AEO — is optimizing content so AI answer engines cite it. From a 2024 KDD paper that found keyword stuffing backfires.

Image Generation

How AI turns noise into a picture: the diffusion loop, the noise schedule on numbers, why it runs in a 48x-compressed latent space, and what guidance costs.

Large Language Model (LLM)

A large language model predicts the next token of text. How that produces answers, where its knowledge is stored, and why an LLM is not a chatbot.

Speech-to-Speech

Speech-to-speech AI takes audio in and returns audio out — conversation or translation — via a cascade (ASR to text to TTS) or one end-to-end model.

Synthetic Data

Data generated by a model instead of collected from the world: what synthetic data is, where it helps, and why recursive use triggers model collapse.

Text-to-Speech (TTS)

Text-to-Speech (TTS) is an AI technology that converts written text into natural-sounding human speech. Modern TTS uses deep learning to capture emotion.

Video Generation

Video generation is an AI technology that creates moving images and scenes from text descriptions, images, or other video clips.

Voice Cloning

Voice cloning uses AI to copy a specific person's voice from seconds of reference audio. How zero-shot systems work, plus the fraud and consent risks.

Watermarking (SynthID)

AI watermarking hides a detectable signal inside model-generated text and images. How SynthID works, its robustness limits, and the EU AI Act rules.

World Models

A world model learns an environment's dynamics — given a state and an action, predict the next state — letting an agent plan or train in imagination.