BismuthMix is checkpoint merge of ChilloutMix, DDosMix, El Zipang, Deliberate and RetMix.
V2: Change some merge ratio, update RetMix to V2 and add real-max-v3.4 and majicMIX realistic into merges.
V3: Change some merge ratio, update majicMIX realistic, change ChilloutMix to ChillyMix and add Shampoo Mix, AIbijoModel, GeminiX Mix, LEAU, CosplayMix, epiCRealism, Lyriel, fantasticmix and XXMix 9realistic into merges. V4: Change every merge ratios and add many models All models and merge ratios are written in HERE For V3 and V4, I used my own model merger.

v1: ((Chilloutmix-Ni-pruned-fp32-fix (0.4) + DDosMix_v2 (0.6) Weighted Sum) (0.5) +
(El Zipang:v1.0 (0.7) + Deliberate v2 (0.3) Weighted Sum) (0.5) Weighted Sum) (0.7) +
RetMix (0.3) Weighted Sum

v2:
real-max-v3.4 + majicMIX realistic v2 0.6 Weighted Sum >> (1)
(1) + ChilloutMix-Ni-pruned-fp32-fix 0.65 Weighted Sum >> (2)
(2) + DDosMix V2 0.45 Weighted Sum >> (3a)
El Zipang + Deliberate V2 0.3 Weighted Sum >> (3b)
(3a) + (3b) 0.5 Weighted Sum >> (4)
(4) + RetMix V2 0.25 Weighted Sum >> BismuthMix V2

v3:
real-max v3.4 + GeminiX Mix v1.0 0.45 Weighted Sum >> (00a)
Shampoo Mix v3.0 + majicMIX realistic v4 0.5 Weighted Sum >> (00b)
(00a) + (00b) 0.4 Weighted Sum >> (0a)
CosplayMix v2.0 + LEAU v1.0 0.35 Weighted Sum >> (0b)
(0b) + (0a) 0.65 Weighted Sum >> (1a)
epiCRealism new Era + XXMix_9realistic v2.6 0.45 Weighted Sum >> (1b)
ChillyMix v1.0 + AIbijoModel no47p22 0.55 Weighted Sum >> (1c)
(1a) + (1c) 0.65 Weighted Sum >> (2)
(2) + (1b) 0.35 Weighted Sum >> (3a)
DDosMix V2 + fantasticmix v5.5 0.25 Weighted Sum >> (3b)
(3a) + (3b) 0.45 Weighted Sum >> (4a)
El Zipang + Deliberate V2 0.35 Weighted Sum >> (4b)
(4a) + (4b) 0.25 Weighted Sum >> (5)
(5) + RetMix V2 0.2 Weighted Sum >> BismuthMix V3