ComfyUI Node
⚗ Alchemica Options · Schedule
A ComfyUI node in ⚗ AlchemicaMente/sampling/options with 13 inputs and 1 output.
⚗ Alchemica Options · Schedule
- opts
- opts
◄scheduleralchemica_dual►
◄steps8►
◄dual_high1.00►
◄dual_width_high0.10►
◄dual_low8.0►
◄dual_width_low0.08►
◄calibrated_exponent0.50►
◄calibrated_mix0.15►
◄shift_override0.00►
◄flux_q1.00►
◄plunge_sigma0.00►
◄calibrated_v2false►
Category⚗ AlchemicaMente/sampling/options
Inputs (13)
| Name | Type | Default | Description |
|---|---|---|---|
| scheduler | COMBO | alchemica_dual | 13 options: alchemica_dual, alchemica_calibrated, flux_shift, linear_flow, comfy:simple, comfy:sgm_uniform, +7 |
| steps | INT | 81–200 | Total steps (single stage) |
| dual_high | FLOAT | 1.000–20 | alchemica_duale: extra steps on composition (high sigma) |
| dual_width_high | FLOAT | 0.100.01–1 | alchemica_duale: how far the high lobe reaches down |
| dual_low | FLOAT | 8.00–40 | alchemica_duale: extra steps on the final detail (low sigma) |
| dual_width_low | FLOAT | 0.080.01–1 | alchemica_duale: how far the low lobe reaches up |
| calibrated_exponent | FLOAT | 0.500–1.5 | alchemica_tarato: 0.5 = theoretical optimum for euler. Higher = more steps where the model changes most |
| calibrated_mix | FLOAT | 0.150–1 | alchemica_tarato: share of steps spread uniformly |
| shift_override | FLOAT | 0.000–5 | Shift mu (0 = the model's own, 1.15 for Krea 2) |
| flux_q | FLOAT | 1.000.3–3 | flux_shift: >1 more steps at the top, <1 at the bottom |
| plunge_sigma | FLOAT | 0.000–0.95 | 0 = off. Otherwise structure stops here and the last step jumps to 0 |
| calibrated_v2 | BOOLEAN | false | alchemica_tarato v2: step law matched to the solver order (cube root of the 3rd derivative for euler_2m / heun), smoothing in log-SNR, and stage 1 of two stages uses the curves measured at half resolution. Needs a profile calibrated after 2026-10-10 for the new curves (otherwise only the smoothing applies) |
| optsopt | ALCHEMICA_OPTS | Chain from another Alchemica options node |
Outputs (1)
| Name | Type | Description |
|---|---|---|
| opts | ALCHEMICA_OPTS | — |