Adept Scheduler (AOS-ε)

AOS-ε is the sibling schedule for the far bigger model family: epsilon-prediction - your standard SD 1.5 and SDXL fine-tunes, which predict noise directly. The "Anime-Optimized" label is doing real work here: this is a schedule shaped for anime and illustrative styles, where the composition-to-detail transition behaves differently than it does for photoreal content.

Like its v-prediction sibling, it's a three-phase ramp, but with different proportions and a different philosophy. The phases split at 35% and 70% of steps. The first phase ramps with a 1.5-power curve up to a modest 0.4 - a soft, careful opening that doesn't slam the early structure. The middle phase climbs from 0.4 to 0.75, again gently, which is where the schedule spends most of its steps building form. The final phase uses a 0.7-power ramp to climb the rest of the way to 1.0, putting a burst of resolution work into the cleanup tail. The overall effect is a schedule that refuses to rush its mid-game: most of the curve is a long, steady middle, which is what anime line art wants - enough steps in the detail-forming region that the solver isn't scrambling.

Inputs: model (reads the checkpoint's sigma range) and steps (default 20). Output is SIGMAS for SamplerCustom's sigmas input. The README pairs it with the Adept Ancestral Sampler (eta 1.0, adaptive_eta on) for an epsilon-model recipe, and that combination is where this schedule shines - the non-converging ancestral sampler benefits from the long middle phase's steady progression, and you get the variety of Euler-a-style sampling without the smeared-detail weakness.

Where AOS-ε sits in the pack: it's the "general anime workhorse" choice. AOS-V exists only for v-prediction models, the Akashic schedulers are EQ-VAE-only, and AYS-SDXL is a fine generic default - but if you're on a classic anime epsilon checkpoint and want the pack's own flavor, this is the one. If you only ever use one scheduler from this pack for anime SD 1.5 work, make it this one.

Install is the pack-wide one and takes seconds - no requirements.txt, no model files:

cd ComfyUI/custom_nodes
git clone https://github.com/nawka12/ComfyUI-Adept-Sampler

Restart, or install via ComfyUI Manager by searching "ComfyUI-Adept-Sampler". It lands in sampling/adept/schedulers.

The honest note: "Anime-Optimized" is a heuristic, not a guarantee - your specific checkpoint may prefer plain Karras or AYS. But as a drop-in default for epsilon anime models, AOS-ε is a confident, no-drama pick, and since every schedule in this pack is one node swap away, it costs you nothing to try.