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Add basic Ministral 3 3B support (Ernie Image) #436

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Add basic Ministral 3 3B support (Ernie Image) #436

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5f96544
Add basic Ministral 3 3B support (Ernie Image)
deinferno Apr 14, 2026
71de384
Apply llama_permute to mistral3 arch
deinferno Apr 15, 2026
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10 changes: 5 additions & 5 deletions loader.py
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@
from .dequant import is_quantized, dequantize_tensor

IMG_ARCH_LIST = {"flux", "sd1", "sdxl", "sd3", "aura", "hidream", "cosmos", "ltxv", "hyvid", "wan", "lumina2", "qwen_image"}
TXT_ARCH_LIST = {"t5", "t5encoder", "llama", "qwen2vl", "qwen3", "qwen3vl", "gemma3"}
TXT_ARCH_LIST = {"t5", "t5encoder", "llama", "qwen2vl", "qwen3", "qwen3vl", "gemma3", "mistral3"}
VIS_TYPE_LIST = {"clip-vision", "mmproj"}

def get_orig_shape(reader, tensor_name):
Expand Down Expand Up @@ -393,7 +393,7 @@ def gguf_tekken_tokenizer_loader(path, temb_shape):

model_str = get_field(reader, "tokenizer.ggml.model", str)
if model_str == "gpt2":
if temb_shape == (131072, 5120): # probably Mistral
if temb_shape == (131072, 5120) or temb_shape == (131072, 3072): # probably Mistral
data = {
"config": {"num_vocab_tokens": 150000, "default_vocab_size": 131072},
"vocab": [],
Expand Down Expand Up @@ -479,11 +479,11 @@ def gguf_clip_loader(path):
logging.warning(f"Dequantizing {temb_key} to prevent runtime OOM.")
sd[temb_key] = dequantize_tensor(sd[temb_key], dtype=torch.float16)
sd = sd_map_replace(sd, T5_SD_MAP)
elif arch in {"llama", "qwen2vl", "qwen3", "qwen3vl", "gemma3"}:
elif arch in {"llama", "qwen2vl", "qwen3", "qwen3vl", "gemma3", "mistral3"}:
# TODO: pass model_options["vocab_size"] to loader somehow
temb_key = "token_embd.weight"
if temb_key in sd and sd[temb_key].shape[0] >= (64 * 1024):
if arch == "llama" and sd[temb_key].shape == (131072, 5120):
if (arch == "llama" and sd[temb_key].shape == (131072, 5120)) or (arch == "mistral3" and sd[temb_key].shape == (131072, 3072)):
# non-standard Comfy-Org tokenizer
sd["tekken_model"] = gguf_tekken_tokenizer_loader(path, sd[temb_key].shape)
elif arch == "gemma3":
Expand All @@ -496,7 +496,7 @@ def gguf_clip_loader(path):
sd = gemma3_norm_corrections(sd)
else:
sd = sd_map_replace(sd, LLAMA_SD_MAP)
if arch == "llama":
if arch == "llama" or arch == "mistral3":
sd = llama_permute(sd, 32, 8) # L3 / Mistral
if arch == "qwen2vl":
vsd = gguf_mmproj_loader(path)
Expand Down