☁️BizyAir Detail Daemon Graph Sigmas

Detail Daemon is one of those tricks that sounds like snake oil until you actually run it: a sigma-schedule hack that makes Flux and HiDream stop looking like plastic without touching your CFG, your step count, or your checkpoint. This node is BizyAir's port of muerrilla's original Detail Daemon, wired to work directly on a sigma graph instead of wrapping a sampler object.

How it works

Normal sampling removes noise on a fixed schedule - the sigmas. Detail Daemon quietly shaves a bit off that schedule in the middle of the run, so the model briefly thinks there's less noise left than there actually is. It responds by inventing finer detail than the unmodified schedule would have produced. No extra steps, no extra render time - same seed gives you roughly the same composition with more texture baked in.

The community's read on it is blunt: "Detail daemon also takes Flux to another level. Specially the plastic skin. People just don't use it," from a widely-shared HiDream comparison thread that put it side by side with vanilla output (+211). It stacks fine with LTX and Wan workflows too, and since it's pure schedule math, it costs nothing in render time.

The inputs that matter

• sigmas - plug in whatever your scheduler produced.
• detail_amount (default 0.1) - the main dial. Positive pushes detail in, negative smooths it out. Past ~0.5 people start seeing the model hallucinate extra elements - a floral pattern on what should've been a plain dress - rather than just sharpening what's there.
• start / end (0.2 / 0.8 default) - the fraction of the sampling run the effect applies to. Leave the earliest and latest steps alone so composition and final cleanup stay untouched.
• bias, exponent, start_offset, end_offset, fade - shape the curve of the effect inside that window. Most people leave these at default and only touch them once detail_amount/start/end aren't giving the look they want.
• smooth (default on) - interpolates instead of stepping, avoiding visible banding.
• cfg_scale - matches the daemon's internal math to whatever CFG/guidance you're actually sampling at.

This is one of the two Detail Daemon variants in the pack and it's an output node - it patches the sigmas graph in place rather than handing you a fresh SIGMAS socket to wire onward. If you want a version that returns a SAMPLER you drop straight into SamplerCustomAdvanced, that's the sibling node, BizyAir Detail Daemon Sampler.

How to install it

ComfyUI Manager: search BizyAir, install, restart. Manually:

cd ComfyUI/custom_nodes
git clone https://github.com/siliconflow/BizyAir

then restart. Per the README, BizyAir wants you logged in with an API key from first use - the pack is fundamentally a cloud-relay product, so even a node that's pure local sigma math sits inside BizyAir's account-gated graph.

Common issues & troubleshooting

Too much, too fast. detail_amount above ~0.3-0.5 tends to invent content the prompt never asked for, not just sharpen existing detail. Push it up from a low starting value until you see that happening, then back off.

No visible effect. Double-check start/end aren't collapsed to a tiny window, and that cfg_scale roughly matches your real guidance value - a badly mismatched value under-corrects the effect.

Wondering which variant to use. If your graph is built around SamplerCustomAdvanced and you're passing sampler objects around rather than raw sigmas, reach for BizyAir Detail Daemon Sampler instead - same technique, different plumbing.