GodnessMerger_OutputBlocks

Another ingredient in SP-Nodes' modular "Godness Merger" system: GodnessMerger_OutputBlocks takes no model, produces no model, and exists purely to decide what merge ratio to apply to one specific chunk of a U-Net. The result comes out as GM_OUTPUT_BLOCKS, a typed value that only means something once it reaches a combiner node elsewhere in the pack - this batch of briefs doesn't cover that node, so consider the wiring beyond this point a gap, not a secret I'm withholding.

Why output_blocks is worth its own control

The name matches the real sub-module in the classic Stable Diffusion U-Net: after the encoder (input_blocks) squeezes the image down and the bottleneck (middle_block) sits at the lowest resolution, output_blocks is the decoder - the upsampling path that reconstructs spatial resolution and detail on the way back out. It's a bigger chunk of the network than time_embed, label_emb, or out, and it's where a lot of fine texture and detail-level character gets decided, as opposed to middle_block's outsized influence on composition and overall structure. A common merge instinct - take one checkpoint's overall "shape" and another's finer rendering style - leans on exactly this kind of split: keep more of one model's earlier blocks, lean toward the other's output_blocks.

The mechanics

Same recipe as every non-experimental Godness Merger ratio node: seed, min, max, type (custom or random), custom_value. custom mode returns custom_value as-is. random mode draws a number between min and max, deterministic from seed. Nothing here touches actual weights - it's a ratio generator, full stop.

Inputs worth knowing

• type - custom for a fixed ratio, random for a reproducible roll.
• min / max - the range random mode draws from (0–1).
• custom_value - only read in custom mode.
• seed - pins the random draw so "random" is actually reproducible.

Installing SP-Nodes

Via ComfyUI Manager: search "SP-Nodes," install, restart. Manual:

cd ComfyUI/custom_nodes
git clone https://github.com/bananasss00/ComfyUI-SP-Nodes

Restart afterward. No dependency, no model download - this node is pure ratio bookkeeping.

What to watch for

The usual missing-node red box appears if you load a workflow that uses this before the pack is installed - install through Manager, restart, and it resolves.

Because output_blocks is a fairly large chunk of the network to be governed by a single scalar, small changes to min/max here can move results more than the equivalent range would on GodnessMerger_Out or GodnessMerger_TimeEmbed. If a merge is coming out closer to one parent than you expected, this is one of the first ratios worth checking - right alongside whatever your combiner's overall strength setting is doing. And as with every random-mode node in this pack: if a particular seed produces a merge you like, write it down. There's no way to reverse-engineer it from the output model afterward.