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29 entries

Glossary

What is AI inference?

Inference is running a trained AI model on an input to produce an output. It is the computation that happens when you ask a model a question or generate an image.

Glossary

Large language model (LLM)

An LLM is a machine-learning model trained on large amounts of language data to perform tasks such as generating, classifying or transforming text.

Glossary

Token

A token is a unit of input or output processed by a language model. It can be a word fragment, punctuation or another encoded unit.

Glossary

Context window

The context window is the amount of token context a model can use for a request, subject to the model and runtime configuration.

Glossary

VRAM

VRAM is memory available to a graphics processor. Local AI uses accelerator memory for model data and working state.

Glossary

Quantisation

Quantisation represents model numbers with lower precision to reduce storage or memory requirements, with possible changes to output quality.

Glossary

Hallucination

In generative AI, hallucination describes fabricated or unsupported content presented as though it were established information.

Glossary

Diffusion

Diffusion models learn to reverse a noise process and can generate media through repeated refinement steps.

Glossary

Checkpoint

A checkpoint is saved model state, usually including weights. In image workflows, the term often refers to the main model file selected by a loader.

Glossary

LoRA

LoRA, or low-rank adaptation, adapts a model by training comparatively small update matrices while keeping the base weights frozen.

Glossary

ComfyUI

ComfyUI is software for assembling and running AI media workflows through a graph of connected nodes.

Glossary

Workflow

A workflow is a connected set of processing steps, their settings and inputs. In ComfyUI it is a node graph that can be saved and shared.

Glossary

Prompt

A prompt is input used to guide a generative model, including instructions and relevant context. Some models also accept images or other media.

Glossary

Image-to-video

Image-to-video generates video frames conditioned on one or more images, sometimes with text or other controls.

Glossary

Training

Training adjusts model parameters using data and an optimisation process. Fine-tuning continues training from an existing trained model.

Question

Can my PC run local AI?

Check the exact model, runtime, available memory and intended job. There is no single RAM or GPU number that makes every local AI model practical.

Question

Why are ComfyUI nodes missing?

A workflow names node types that your current installation cannot load. Missing code, failed imports and missing model files need different fixes.

Question

What do Q4, Q8, FP16 and GGUF mean?

Q4, Q8 and FP16 describe numerical representations; GGUF describes a model-file format. Neither label alone tells you quality, compatibility or total memory.