Lesson Content

Concept weighting with :: syntax.

After a :: separator, a numeric weight specifies the relative importance of that concept segment: concept A :: 2 concept B :: 1 gives concept A twice the weight of concept B. Weights can be positive integers or decimals. Default weight is 1 when no number follows ::. Higher weights pull the generation more strongly toward that concept; lower weights reduce its influence.

Practical weighting applications.

Example: epic mountain landscape :: 2 tiny cabin in foreground ::1 golden sunset :: 1.5 – the mountain landscape is twice as important as the cabin, and the golden sunset is weighted 50% more than the cabin but less than the landscape. The result typically emphasizes the landscape as the dominant visual element while including the cabin and sunset as supporting elements.

Negative weighting.

Negative weights (:: -1, :: -0.5) actively push the generation away from a concept – functioning as an alternative to --no for concept exclusion. Example: forest :: 1 dark shadows ::-0.5 – the forest is included but shadows are actively de-emphasized. The --no parameter (covered next lesson) is often simpler for exclusion; negative weighting is useful for fine-grained de-emphasis rather than full exclusion.

Limits of prompt weighting.

Prompt weighting influences but does not guarantee specific output balance – weights shift the probability distribution of what the model generates but don't deterministically control element prominence. Very high or very low weights may produce unexpected results; test weight adjustments in small increments to observe their actual effect on output.