Prompt Syntax.md

Advanced Prompt Syntax

Weighting

• Prompt weighting, eg an (orange) cat or an (orange:1.5) cat. Anything in (parens) has its weighting modified - meaning, the model will pay more attention to that part of the prompt. Values above 1 are more important, values below 1 (eg 0.5) are less important.
  • You can also hold Control and press the up/down arrow keys to change the weight of selected text.
  • Note: the way prompt weights are understood is different depending on backend.

Alternating

• You can use <alternate:cat, dog> to alternate every step between cat and dog, creating a merge/mixture of the two concepts.
  • Similar to random you can instead use | or || to separate entries. You can have as many unique words as you want, eg <alternate:cat, dog, horse, wolf, taco> has 5 words so it will cycle through them every 5 steps.

From-To

• You can use <fromto[#]:before, after> to swap between two phrases after a certain timestep.
  • The timestep can be like 10 for step 10, or like 0.5 for halfway-through.
  • Similar to random you can instead use | or || to separate entries. Must have exactly two entries.
  • For example, <fromto[0.5]:cat, dog> swaps from cat to dog halfway through a generation.

Random

• You can use the syntax <random:red, blue, purple> to randomly select from a list for each gen
  • This random is seeded by the main seed - so if you have a static seed, this won't change.
  • You can use , to separate the entries, or |, or ||. Whichever is most unique gets used - so if you want random options with , in them, just use | as a separator, and , will be ignored (eg <random:red|blue|purple>).
  • An entry can contain the syntax of eg 1-5 to automatically select a number from 1 to 5. For example, <random:1-3, blue> will give back any of: 1, 2, 3, or blue.
  • You can repeat random choices via <random[1-3]:red, blue, purple> which might return for example red blue or red blue purple or blue.
    • You can use a comma at the end like random[1-3,] to specify the output should have a comma eg red, blue.
    • This will avoid repetition, unless you have a large count than number of options.

Wildcards

• You can use the syntax <wildcard:my/wildcard/name> to randomly select from a wildcard file, which is basically a pre-saved text file of random options, 1 per line.
  • Edit these in the UI at the bottom in the "Wildcards" tab.
  • You can also import wildcard files from other UIs (ie text file collections) by just adding them into Data/Wildcards folder.
  • This supports the same syntax as random to get multiple, for example <wildcard[1-3]:animals> might return cat dog or elephant leopard dog.

Repeat

• You can use the syntax <repeat:3, cat> to get the word "cat" 3 times in a row (cat cat cat).
  • You can use for example like <repeat:1-3, <random:cat, dog>> to get between 1 and 3 copies of either cat or dog, for example it might return cat dog cat.

Textual Inversion Embeddings

• You can use <embed:filename> to use a Textual Inversion embedding anywhere.

LoRAs

• You may use <lora:filename:weight> to enable a LoRA
  • Note that it's generally preferred to use the GUI at the bottom of the page to select loras
  • Note that usually position within the prompt doesn't matter, loras are not actually a prompt feature, this is just a convenience option for users used to Auto WebUI.
  • The one time it does matter, is when you use <segment:...> or <object:...>: a LoRA inside one of these will apply only to that segment or object.

Presets

• You can use <preset:presetname> to inject a preset.
  • GUI is generally preferred for LoRAs, this is available to allow dynamically messing with presets (eg <preset:<random:a, b>>)

Automatic Segmentation and Refining

• You can use <segment:texthere> to automatically refine part of the image using CLIP Segmentation.
  • Or <segment:texthere,creativity,threshold> - where creativity is inpaint strength, and threshold is segmentation minimum threshold - for example, <segment:face,0.8,0.5> - defaults to 0.6 creativity, 0.5 threshold.
  • See the feature announcement for details.
  • You can insert a <lora:...> inside the prompt area of the segment to have a lora model apply onto that segment
  • You can also replace the texthere with yolo-modelnamehere to use YOLOv8 segmentation models
    • store your models in (Swarm)/Models/yolov8
    • Examples of valid YOLOv8 Segmentation models here: https://github.com/hben35096/assets/releases/
    • You can also do yolo-modelnamehere-1 to grab exactly match #1, and -2 for match #2, and etc.
      • You can do this all in one prompt to individual refine specific faces separately
      • Without this, if there are multiple people, it will do a bulk segmented refine on all faces combined
    • To control the creativity with a yolo model just append ,<creativity>,1, for example <segment:yolo-face_yolov8m-seg_60.pt-1,0.8,1> sets a 0.8 creativity.
  • There's an advanced parameter under Regional Prompting named Segment Model to customize the base model used for segment processing
  • There's also a parameter named Save Segment Mask to save a preview copy of the generated mask

Clear (Transparency)

• You can use <clear:texthere> to automatically clear parts of an image to transparent. This uses the same input format as segment (above) (for obvious reasons, this requires PNG not JPG).
  • For example, <clear:background> to clear the background.

Break Keyword

• You can use <break> to specify a manual CLIP section break (eg in Auto WebUI this is BREAK).
  • If this is confusing, you this a bit of an internal hacky thing, so don't worry about. But if you want to know, here's the explanation:
    • CLIP (the model that processes text input to pass to SD), has a length of 75 tokens (words basically).
    • By default, if you write a prompt that's longer than 75 tokens, what it will do is split 75/75, the first 75 tokens go in and become one CLIP result chunk, and then the next tokens get passed for a second CLIP chunk, and then the multiple CLIP results are parsed by SD in a batch and mixed as it goes.
    • The problem with this, is it's basically random - you might have eg a photo of a big fluffy dog, and it gets split into a photo of a big fluffy and then dog (in practice 75 tokens is a much longer prompt but just an example of how the split might go wrong)
    • Using <break> lets you manually specify where it splits, so you might do eg a photo <break> big fluffy dog (to intentionally put the style in one chunk and the subject in the next)