Random Prompt Selector

Type a list of prompts, one per line, and Random_Prompt_Selector hands back one of them at random. That's it - and it's the seedable kind of random, which is what makes it useful rather than annoying. Keep the same seed and you get the same pick every run; change the seed and you roll again. If you've been manually cycling prompts for variety, this automates it.

It's the single-pick member of the Endless random prompt family (the Multipicker is the multi-line sibling, and the pack also has the heavier Chaos/Mayhem/Pandemonium parameter randomizers). The README frames these as "randomly selecting text from the input... useful for randomly picking prompts."

Inputs and outputs

• prompts - multiline, one prompt per line. Lines are stripped and blanks ignored.
• seed - integer 0 to 4294967295. The reproducibility knob.

Output: selected_prompt - a single STRING. Wire it straight into your positive prompt node.

Under the hood it's a random.seed(seed) followed by random.choice(lines) - deterministic for a given seed, which is the whole deal. Set the seed to 0 (or any fixed value), and a workflow you've saved will reproduce the same pick when reloaded.

How to actually use it

The interesting version of this is randomness you can freeze. Pair it with a fixed-seed sampler for "same settings, random subject" exploration, or leave the seed wired to a random source when you want every run to surprise you. Want a guaranteed range of variation across a batch? Combine with the Endless batch prompt nodes - let this selector feed a SimpleBatchPrompts list, set the queue to run several times, and each run gets a fresh prompt while the graph itself stays untouched.

One honest note: prompt-randomizing on a single pick is a shallow kind of variety - the pick is uniformly random, so it won't weight favorites. If you want smarter selection (wildcards, weighted choices, exclusion), dedicated dynamic-prompt tooling exists. This node is for when simple and reproducible is exactly what you need.

Installing it

Ships in Endless 🌊✨ Nodes by tusharbhutt:

cd ComfyUI/custom_nodes
git clone https://github.com/tusharbhutt/Endless-Nodes
# restart ComfyUI

Or ComfyUI Manager → search "Endless". No dependencies or model files.

Gotchas

An empty or all-blank prompt list returns an empty string rather than erroring, so downstream will happily render an empty prompt. And the pack caveat: one hobbyist maintainer, AI-assisted, rewritten June 2025. The logic here is a couple of lines, so the risk is minimal - but plenty of utility packs ship an equivalent random picker if you don't need the rest of Endless.