PPGenerateRandomNumber

Seeds are where a lot of workflows go to die. You hardcode one, every run looks the same; you leave the default, and half the time you're not sure what you're comparing. PPGenerateRandomNumber is the pack's answer: give it a min and a max, and it hands back a random integer on every single execution. Hook it into your seed input and each queue gives you a genuinely different starting point with zero bookkeeping.

How it works

Two INT inputs - min_value (default 0) and max_value (default 100) - and the node calls random.randint(min, max), an inclusive draw: both bounds are valid outcomes. The result exits as the random_number output, typed INT, and will happily feed any integer input in the graph: the seed port on a KSampler, a step count, a PPSelectRandomValue index, an iteration limit.

The deliberate behavior here is in the IS_CHANGED override, which always returns True. ComfyUI therefore treats this node as changed on every execution, meaning you get a fresh value each queue - no caching of "the last random number I rolled." That's exactly what you want for a seed generator, and it has the side effect of re-running anything downstream that consumes it, every time.

The trade-off, stated plainly

There's no seed input, and there's no way to reproduce a number. That's the point of the node - but it's also the trap. The moment you generate something you love and want to recreate it, you can't from this node alone; the value that produced the image is sitting in that run's workflow data only if you captured it. If reproducibility matters, hardcode a seed you like and only switch to this node when you're deliberately exploring. For "roll me a bunch of variants and I'll keep the good one," it's ideal.

Installing it

Same as every node in this pack - it comes with the petty-paint install. ComfyUI Manager search "Petty Paint", or:

cd ComfyUI/custom_nodes
git clone https://github.com/mephisto83/petty-paint-comfyui-node

then restart ComfyUI. No models to download; the pack's only pinned dependency (Flask) isn't actually imported by the current source, so the install stays small.

Where it fits

In the petty-paint loop it's the companion to PPGenerateRandomFloat - that one rolls floats for CFG/denoise, this one rolls integers for seeds and indexes. If you need a random pick from a list instead of a raw number, PPSelectRandomValue is your node. Use this one for anything where "a different integer every run" is the goal and you'll never think about it again.