feat: add timestamp to default filename_prefix for cache-busting

Change default filename_prefix on all previewable save nodes (image, video,
audio, 3D, SVG) from 'ComfyUI' to 'ComfyUI_%year%%month%%day%-%hour%%minute%%second%'.

This leverages the existing compute_vars template system in
get_save_image_path — zero new backend code needed. Each output gets a
unique filename per second, preventing browser cache from showing stale
previews when files are overwritten.

Users can customize or remove the template from the node widget.
Existing workflows retain their saved prefix value (only new nodes
get the new default). Custom nodes are unaffected — they define their
own defaults independently.

comfy/model_base.py

@@ -925,6 +925,25 @@ class Flux(BaseModel):
             out['ref_latents'] = list([1, 16, sum(map(lambda a: math.prod(a.size()[2:]), ref_latents))])
         return out
 
+class LongCatImage(Flux):
+    def _apply_model(self, x, t, c_concat=None, c_crossattn=None, control=None, transformer_options={}, **kwargs):
+        transformer_options = transformer_options.copy()
+        rope_opts = transformer_options.get("rope_options", {})
+        rope_opts = dict(rope_opts)
+        rope_opts.setdefault("shift_t", 1.0)
+        rope_opts.setdefault("shift_y", 512.0)
+        rope_opts.setdefault("shift_x", 512.0)
+        transformer_options["rope_options"] = rope_opts
+        return super()._apply_model(x, t, c_concat, c_crossattn, control, transformer_options, **kwargs)
+
+    def encode_adm(self, **kwargs):
+        return None
+
+    def extra_conds(self, **kwargs):
+        out = super().extra_conds(**kwargs)
+        out.pop('guidance', None)
+        return out
+
 class Flux2(Flux):
     def extra_conds(self, **kwargs):
         out = super().extra_conds(**kwargs)

comfy/model_detection.py

@@ -279,6 +279,8 @@ def detect_unet_config(state_dict, key_prefix, metadata=None):
             dit_config["txt_norm"] = any_suffix_in(state_dict_keys, key_prefix, 'txt_norm.', ["weight", "scale"])
             if dit_config["yak_mlp"] and dit_config["txt_norm"]:  # Ovis model
                 dit_config["txt_ids_dims"] = [1, 2]
+            if dit_config.get("context_in_dim") == 3584 and dit_config["vec_in_dim"] is None:  # LongCat-Image
+                dit_config["txt_ids_dims"] = [1, 2]
 
         return dit_config
 

comfy/sd.py

@@ -60,6 +60,7 @@ import comfy.text_encoders.jina_clip_2
 import comfy.text_encoders.newbie
 import comfy.text_encoders.anima
 import comfy.text_encoders.ace15
+import comfy.text_encoders.longcat_image
 
 import comfy.model_patcher
 import comfy.lora
@@ -1160,6 +1161,7 @@ class CLIPType(Enum):
     KANDINSKY5_IMAGE = 23
     NEWBIE = 24
     FLUX2 = 25
+    LONGCAT_IMAGE = 26
 
 
 def load_clip(ckpt_paths, embedding_directory=None, clip_type=CLIPType.STABLE_DIFFUSION, model_options={}):
@@ -1372,6 +1374,9 @@ def load_text_encoder_state_dicts(state_dicts=[], embedding_directory=None, clip
             if clip_type == CLIPType.HUNYUAN_IMAGE:
                 clip_target.clip = comfy.text_encoders.hunyuan_image.te(byt5=False, **llama_detect(clip_data))
                 clip_target.tokenizer = comfy.text_encoders.hunyuan_image.HunyuanImageTokenizer
+            elif clip_type == CLIPType.LONGCAT_IMAGE:
+                clip_target.clip = comfy.text_encoders.longcat_image.te(**llama_detect(clip_data))
+                clip_target.tokenizer = comfy.text_encoders.longcat_image.LongCatImageTokenizer
             else:
                 clip_target.clip = comfy.text_encoders.qwen_image.te(**llama_detect(clip_data))
                 clip_target.tokenizer = comfy.text_encoders.qwen_image.QwenImageTokenizer

comfy/supported_models.py

@@ -25,6 +25,7 @@ import comfy.text_encoders.kandinsky5
 import comfy.text_encoders.z_image
 import comfy.text_encoders.anima
 import comfy.text_encoders.ace15
+import comfy.text_encoders.longcat_image
 
 from . import supported_models_base
 from . import latent_formats
@@ -1678,6 +1679,37 @@ class ACEStep15(supported_models_base.BASE):
         return supported_models_base.ClipTarget(comfy.text_encoders.ace15.ACE15Tokenizer, comfy.text_encoders.ace15.te(**detect))
 
 
-models = [LotusD, Stable_Zero123, SD15_instructpix2pix, SD15, SD20, SD21UnclipL, SD21UnclipH, SDXL_instructpix2pix, SDXLRefiner, SDXL, SSD1B, KOALA_700M, KOALA_1B, Segmind_Vega, SD_X4Upscaler, Stable_Cascade_C, Stable_Cascade_B, SV3D_u, SV3D_p, SD3, StableAudio, AuraFlow, PixArtAlpha, PixArtSigma, HunyuanDiT, HunyuanDiT1, FluxInpaint, Flux, FluxSchnell, GenmoMochi, LTXV, LTXAV, HunyuanVideo15_SR_Distilled, HunyuanVideo15, HunyuanImage21Refiner, HunyuanImage21, HunyuanVideoSkyreelsI2V, HunyuanVideoI2V, HunyuanVideo, CosmosT2V, CosmosI2V, CosmosT2IPredict2, CosmosI2VPredict2, ZImage, Lumina2, WAN22_T2V, WAN21_T2V, WAN21_I2V, WAN21_FunControl2V, WAN21_Vace, WAN21_Camera, WAN22_Camera, WAN22_S2V, WAN21_HuMo, WAN22_Animate, WAN21_FlowRVS, Hunyuan3Dv2mini, Hunyuan3Dv2, Hunyuan3Dv2_1, HiDream, Chroma, ChromaRadiance, ACEStep, ACEStep15, Omnigen2, QwenImage, Flux2, Kandinsky5Image, Kandinsky5, Anima]
+class LongCatImage(supported_models_base.BASE):
+    unet_config = {
+        "image_model": "flux",
+        "guidance_embed": False,
+        "vec_in_dim": None,
+        "context_in_dim": 3584,
+        "txt_ids_dims": [1, 2],
+    }
+
+    sampling_settings = {
+    }
+
+    unet_extra_config = {}
+    latent_format = latent_formats.Flux
+
+    memory_usage_factor = 2.5
+
+    supported_inference_dtypes = [torch.bfloat16, torch.float16, torch.float32]
+
+    vae_key_prefix = ["vae."]
+    text_encoder_key_prefix = ["text_encoders."]
+
+    def get_model(self, state_dict, prefix="", device=None):
+        out = model_base.LongCatImage(self, device=device)
+        return out
+
+    def clip_target(self, state_dict={}):
+        pref = self.text_encoder_key_prefix[0]
+        hunyuan_detect = comfy.text_encoders.hunyuan_video.llama_detect(state_dict, "{}qwen25_7b.transformer.".format(pref))
+        return supported_models_base.ClipTarget(comfy.text_encoders.longcat_image.LongCatImageTokenizer, comfy.text_encoders.longcat_image.te(**hunyuan_detect))
+
+models = [LotusD, Stable_Zero123, SD15_instructpix2pix, SD15, SD20, SD21UnclipL, SD21UnclipH, SDXL_instructpix2pix, SDXLRefiner, SDXL, SSD1B, KOALA_700M, KOALA_1B, Segmind_Vega, SD_X4Upscaler, Stable_Cascade_C, Stable_Cascade_B, SV3D_u, SV3D_p, SD3, StableAudio, AuraFlow, PixArtAlpha, PixArtSigma, HunyuanDiT, HunyuanDiT1, FluxInpaint, Flux, LongCatImage, FluxSchnell, GenmoMochi, LTXV, LTXAV, HunyuanVideo15_SR_Distilled, HunyuanVideo15, HunyuanImage21Refiner, HunyuanImage21, HunyuanVideoSkyreelsI2V, HunyuanVideoI2V, HunyuanVideo, CosmosT2V, CosmosI2V, CosmosT2IPredict2, CosmosI2VPredict2, ZImage, Lumina2, WAN22_T2V, WAN21_T2V, WAN21_I2V, WAN21_FunControl2V, WAN21_Vace, WAN21_Camera, WAN22_Camera, WAN22_S2V, WAN21_HuMo, WAN22_Animate, WAN21_FlowRVS, Hunyuan3Dv2mini, Hunyuan3Dv2, Hunyuan3Dv2_1, HiDream, Chroma, ChromaRadiance, ACEStep, ACEStep15, Omnigen2, QwenImage, Flux2, Kandinsky5Image, Kandinsky5, Anima]
 
 models += [SVD_img2vid]

comfy/text_encoders/ace15.py

@@ -328,14 +328,14 @@ class ACE15TEModel(torch.nn.Module):
                 return getattr(self, self.lm_model).load_sd(sd)
 
     def memory_estimation_function(self, token_weight_pairs, device=None):
-        lm_metadata = token_weight_pairs["lm_metadata"]
+        lm_metadata = token_weight_pairs.get("lm_metadata", {})
         constant = self.constant
         if comfy.model_management.should_use_bf16(device):
             constant *= 0.5
 
         token_weight_pairs = token_weight_pairs.get("lm_prompt", [])
         num_tokens = sum(map(lambda a: len(a), token_weight_pairs))
-        num_tokens += lm_metadata['min_tokens']
+        num_tokens += lm_metadata.get("min_tokens", 0)
         return num_tokens * constant * 1024 * 1024
 
 def te(dtype_llama=None, llama_quantization_metadata=None, lm_model="qwen3_2b"):

comfy/text_encoders/longcat_image.py

@@ -0,0 +1,184 @@
+import re
+import numbers
+import torch
+from comfy import sd1_clip
+from comfy.text_encoders.qwen_image import Qwen25_7BVLITokenizer, Qwen25_7BVLIModel
+import logging
+
+logger = logging.getLogger(__name__)
+
+QUOTE_PAIRS = [("'", "'"), ('"', '"'), ("\u2018", "\u2019"), ("\u201c", "\u201d")]
+QUOTE_PATTERN = "|".join(
+    [
+        re.escape(q1) + r"[^" + re.escape(q1 + q2) + r"]*?" + re.escape(q2)
+        for q1, q2 in QUOTE_PAIRS
+    ]
+)
+WORD_INTERNAL_QUOTE_RE = re.compile(r"[a-zA-Z]+'[a-zA-Z]+")
+
+
+def split_quotation(prompt):
+    matches = WORD_INTERNAL_QUOTE_RE.findall(prompt)
+    mapping = []
+    for i, word_src in enumerate(set(matches)):
+        word_tgt = "longcat_$##$_longcat" * (i + 1)
+        prompt = prompt.replace(word_src, word_tgt)
+        mapping.append((word_src, word_tgt))
+
+    parts = re.split(f"({QUOTE_PATTERN})", prompt)
+    result = []
+    for part in parts:
+        for word_src, word_tgt in mapping:
+            part = part.replace(word_tgt, word_src)
+        if not part:
+            continue
+        is_quoted = bool(re.match(QUOTE_PATTERN, part))
+        result.append((part, is_quoted))
+    return result
+
+
+class LongCatImageBaseTokenizer(Qwen25_7BVLITokenizer):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.max_length = 512
+
+    def tokenize_with_weights(self, text, return_word_ids=False, **kwargs):
+        parts = split_quotation(text)
+        all_tokens = []
+        for part_text, is_quoted in parts:
+            if is_quoted:
+                for char in part_text:
+                    ids = self.tokenizer(char, add_special_tokens=False)["input_ids"]
+                    all_tokens.extend(ids)
+            else:
+                ids = self.tokenizer(part_text, add_special_tokens=False)["input_ids"]
+                all_tokens.extend(ids)
+
+        if len(all_tokens) > self.max_length:
+            all_tokens = all_tokens[: self.max_length]
+            logger.warning(f"Truncated prompt to {self.max_length} tokens")
+
+        output = [(t, 1.0) for t in all_tokens]
+        # Pad to max length
+        self.pad_tokens(output, self.max_length - len(output))
+        return [output]
+
+
+class LongCatImageTokenizer(sd1_clip.SD1Tokenizer):
+    def __init__(self, embedding_directory=None, tokenizer_data={}):
+        super().__init__(
+            embedding_directory=embedding_directory,
+            tokenizer_data=tokenizer_data,
+            name="qwen25_7b",
+            tokenizer=LongCatImageBaseTokenizer,
+        )
+        self.longcat_template_prefix = "<|im_start|>system\nAs an image captioning expert, generate a descriptive text prompt based on an image content, suitable for input to a text-to-image model.<|im_end|>\n<|im_start|>user\n"
+        self.longcat_template_suffix = "<|im_end|>\n<|im_start|>assistant\n"
+
+    def tokenize_with_weights(self, text, return_word_ids=False, **kwargs):
+        skip_template = False
+        if text.startswith("<|im_start|>"):
+            skip_template = True
+        if text.startswith("<|start_header_id|>"):
+            skip_template = True
+        if text == "":
+            text = " "
+
+        base_tok = getattr(self, "qwen25_7b")
+        if skip_template:
+            tokens = super().tokenize_with_weights(
+                text, return_word_ids=return_word_ids, disable_weights=True, **kwargs
+            )
+        else:
+            prefix_ids = base_tok.tokenizer(
+                self.longcat_template_prefix, add_special_tokens=False
+            )["input_ids"]
+            suffix_ids = base_tok.tokenizer(
+                self.longcat_template_suffix, add_special_tokens=False
+            )["input_ids"]
+
+            prompt_tokens = base_tok.tokenize_with_weights(
+                text, return_word_ids=return_word_ids, **kwargs
+            )
+            prompt_pairs = prompt_tokens[0]
+
+            prefix_pairs = [(t, 1.0) for t in prefix_ids]
+            suffix_pairs = [(t, 1.0) for t in suffix_ids]
+
+            combined = prefix_pairs + prompt_pairs + suffix_pairs
+            tokens = {"qwen25_7b": [combined]}
+
+        return tokens
+
+
+class LongCatImageTEModel(sd1_clip.SD1ClipModel):
+    def __init__(self, device="cpu", dtype=None, model_options={}):
+        super().__init__(
+            device=device,
+            dtype=dtype,
+            name="qwen25_7b",
+            clip_model=Qwen25_7BVLIModel,
+            model_options=model_options,
+        )
+
+    def encode_token_weights(self, token_weight_pairs, template_end=-1):
+        out, pooled, extra = super().encode_token_weights(token_weight_pairs)
+        tok_pairs = token_weight_pairs["qwen25_7b"][0]
+        count_im_start = 0
+        if template_end == -1:
+            for i, v in enumerate(tok_pairs):
+                elem = v[0]
+                if not torch.is_tensor(elem):
+                    if isinstance(elem, numbers.Integral):
+                        if elem == 151644 and count_im_start < 2:
+                            template_end = i
+                            count_im_start += 1
+
+        if out.shape[1] > (template_end + 3):
+            if tok_pairs[template_end + 1][0] == 872:
+                if tok_pairs[template_end + 2][0] == 198:
+                    template_end += 3
+
+        if template_end == -1:
+            template_end = 0
+
+        suffix_start = None
+        for i in range(len(tok_pairs) - 1, -1, -1):
+            elem = tok_pairs[i][0]
+            if not torch.is_tensor(elem) and isinstance(elem, numbers.Integral):
+                if elem == 151645:
+                    suffix_start = i
+                    break
+
+        out = out[:, template_end:]
+
+        if "attention_mask" in extra:
+            extra["attention_mask"] = extra["attention_mask"][:, template_end:]
+            if extra["attention_mask"].sum() == torch.numel(extra["attention_mask"]):
+                extra.pop("attention_mask")
+
+        if suffix_start is not None:
+            suffix_len = len(tok_pairs) - suffix_start
+            if suffix_len > 0 and out.shape[1] > suffix_len:
+                out = out[:, :-suffix_len]
+                if "attention_mask" in extra:
+                    extra["attention_mask"] = extra["attention_mask"][:, :-suffix_len]
+                    if extra["attention_mask"].sum() == torch.numel(
+                        extra["attention_mask"]
+                    ):
+                        extra.pop("attention_mask")
+
+        return out, pooled, extra
+
+
+def te(dtype_llama=None, llama_quantization_metadata=None):
+    class LongCatImageTEModel_(LongCatImageTEModel):
+        def __init__(self, device="cpu", dtype=None, model_options={}):
+            if llama_quantization_metadata is not None:
+                model_options = model_options.copy()
+                model_options["quantization_metadata"] = llama_quantization_metadata
+            if dtype_llama is not None:
+                dtype = dtype_llama
+            super().__init__(device=device, dtype=dtype, model_options=model_options)
+
+    return LongCatImageTEModel_

comfy_extras/nodes_audio.py

@@ -162,7 +162,7 @@ class SaveAudio(IO.ComfyNode):
             essentials_category="Audio",
             inputs=[
                 IO.Audio.Input("audio"),
-                IO.String.Input("filename_prefix", default="audio/ComfyUI"),
+                IO.String.Input("filename_prefix", default="audio/ComfyUI_%year%%month%%day%-%hour%%minute%%second%"),
             ],
             hidden=[IO.Hidden.prompt, IO.Hidden.extra_pnginfo],
             is_output_node=True,
@@ -187,7 +187,7 @@ class SaveAudioMP3(IO.ComfyNode):
             category="audio",
             inputs=[
                 IO.Audio.Input("audio"),
-                IO.String.Input("filename_prefix", default="audio/ComfyUI"),
+                IO.String.Input("filename_prefix", default="audio/ComfyUI_%year%%month%%day%-%hour%%minute%%second%"),
                 IO.Combo.Input("quality", options=["V0", "128k", "320k"], default="V0"),
             ],
             hidden=[IO.Hidden.prompt, IO.Hidden.extra_pnginfo],
@@ -215,7 +215,7 @@ class SaveAudioOpus(IO.ComfyNode):
             category="audio",
             inputs=[
                 IO.Audio.Input("audio"),
-                IO.String.Input("filename_prefix", default="audio/ComfyUI"),
+                IO.String.Input("filename_prefix", default="audio/ComfyUI_%year%%month%%day%-%hour%%minute%%second%"),
                 IO.Combo.Input("quality", options=["64k", "96k", "128k", "192k", "320k"], default="128k"),
             ],
             hidden=[IO.Hidden.prompt, IO.Hidden.extra_pnginfo],

comfy_extras/nodes_hunyuan3d.py

@@ -637,7 +637,7 @@ class SaveGLB(IO.ComfyNode):
                     ],
                     tooltip="Mesh or 3D file to save",
                 ),
-                IO.String.Input("filename_prefix", default="mesh/ComfyUI"),
+                IO.String.Input("filename_prefix", default="mesh/ComfyUI_%year%%month%%day%-%hour%%minute%%second%"),
             ],
             hidden=[IO.Hidden.prompt, IO.Hidden.extra_pnginfo]
         )

comfy_extras/nodes_images.py

@@ -190,7 +190,7 @@ class SaveAnimatedWEBP(IO.ComfyNode):
             category="image/animation",
             inputs=[
                 IO.Image.Input("images"),
-                IO.String.Input("filename_prefix", default="ComfyUI"),
+                IO.String.Input("filename_prefix", default="ComfyUI_%year%%month%%day%-%hour%%minute%%second%"),
                 IO.Float.Input("fps", default=6.0, min=0.01, max=1000.0, step=0.01),
                 IO.Boolean.Input("lossless", default=True),
                 IO.Int.Input("quality", default=80, min=0, max=100),
@@ -227,7 +227,7 @@ class SaveAnimatedPNG(IO.ComfyNode):
             category="image/animation",
             inputs=[
                 IO.Image.Input("images"),
-                IO.String.Input("filename_prefix", default="ComfyUI"),
+                IO.String.Input("filename_prefix", default="ComfyUI_%year%%month%%day%-%hour%%minute%%second%"),
                 IO.Float.Input("fps", default=6.0, min=0.01, max=1000.0, step=0.01),
                 IO.Int.Input("compress_level", default=4, min=0, max=9, advanced=True),
             ],
@@ -489,7 +489,7 @@ class SaveSVGNode(IO.ComfyNode):
                 IO.SVG.Input("svg"),
                 IO.String.Input(
                     "filename_prefix",
-                    default="svg/ComfyUI",
+                    default="svg/ComfyUI_%year%%month%%day%-%hour%%minute%%second%",
                     tooltip="The prefix for the file to save. This may include formatting information such as %date:yyyy-MM-dd% or %Empty Latent Image.width% to include values from nodes.",
                 ),
             ],

comfy_extras/nodes_resolution.py

@@ -16,15 +16,15 @@ class AspectRatio(str, Enum):
     WIDESCREEN_V = "9:16 (Portrait Widescreen)"
 
 
-ASPECT_RATIOS: dict[str, tuple[int, int]] = {
-    "1:1 (Square)": (1, 1),
-    "3:2 (Photo)": (3, 2),
-    "4:3 (Standard)": (4, 3),
-    "16:9 (Widescreen)": (16, 9),
-    "21:9 (Ultrawide)": (21, 9),
-    "2:3 (Portrait Photo)": (2, 3),
-    "3:4 (Portrait Standard)": (3, 4),
-    "9:16 (Portrait Widescreen)": (9, 16),
+ASPECT_RATIOS: dict[AspectRatio, tuple[int, int]] = {
+    AspectRatio.SQUARE: (1, 1),
+    AspectRatio.PHOTO_H: (3, 2),
+    AspectRatio.STANDARD_H: (4, 3),
+    AspectRatio.WIDESCREEN_H: (16, 9),
+    AspectRatio.ULTRAWIDE_H: (21, 9),
+    AspectRatio.PHOTO_V: (2, 3),
+    AspectRatio.STANDARD_V: (3, 4),
+    AspectRatio.WIDESCREEN_V: (9, 16),
 }
 
 
@@ -55,8 +55,12 @@ class ResolutionSelector(io.ComfyNode):
                 ),
             ],
             outputs=[
-                io.Int.Output("width", tooltip="Calculated width in pixels (multiple of 8)."),
-                io.Int.Output("height", tooltip="Calculated height in pixels (multiple of 8)."),
+                io.Int.Output(
+                    "width", tooltip="Calculated width in pixels (multiple of 8)."
+                ),
+                io.Int.Output(
+                    "height", tooltip="Calculated height in pixels (multiple of 8)."
+                ),
             ],
         )
 

comfy_extras/nodes_video.py

@@ -21,7 +21,7 @@ class SaveWEBM(io.ComfyNode):
             is_experimental=True,
             inputs=[
                 io.Image.Input("images"),
-                io.String.Input("filename_prefix", default="ComfyUI"),
+                io.String.Input("filename_prefix", default="ComfyUI_%year%%month%%day%-%hour%%minute%%second%"),
                 io.Combo.Input("codec", options=["vp9", "av1"]),
                 io.Float.Input("fps", default=24.0, min=0.01, max=1000.0, step=0.01),
                 io.Float.Input("crf", default=32.0, min=0, max=63.0, step=1, tooltip="Higher crf means lower quality with a smaller file size, lower crf means higher quality higher filesize."),
@@ -77,7 +77,7 @@ class SaveVideo(io.ComfyNode):
             description="Saves the input images to your ComfyUI output directory.",
             inputs=[
                 io.Video.Input("video", tooltip="The video to save."),
-                io.String.Input("filename_prefix", default="video/ComfyUI", tooltip="The prefix for the file to save. This may include formatting information such as %date:yyyy-MM-dd% or %Empty Latent Image.width% to include values from nodes."),
+                io.String.Input("filename_prefix", default="video/ComfyUI_%year%%month%%day%-%hour%%minute%%second%", tooltip="The prefix for the file to save. This may include formatting information such as %date:yyyy-MM-dd% or %Empty Latent Image.width% to include values from nodes."),
                 io.Combo.Input("format", options=Types.VideoContainer.as_input(), default="auto", tooltip="The format to save the video as."),
                 io.Combo.Input("codec", options=Types.VideoCodec.as_input(), default="auto", tooltip="The codec to use for the video."),
             ],

nodes.py

@@ -976,7 +976,7 @@ class CLIPLoader:
     @classmethod
     def INPUT_TYPES(s):
         return {"required": { "clip_name": (folder_paths.get_filename_list("text_encoders"), ),
-                              "type": (["stable_diffusion", "stable_cascade", "sd3", "stable_audio", "mochi", "ltxv", "pixart", "cosmos", "lumina2", "wan", "hidream", "chroma", "ace", "omnigen2", "qwen_image", "hunyuan_image", "flux2", "ovis"], ),
+                              "type": (["stable_diffusion", "stable_cascade", "sd3", "stable_audio", "mochi", "ltxv", "pixart", "cosmos", "lumina2", "wan", "hidream", "chroma", "ace", "omnigen2", "qwen_image", "hunyuan_image", "flux2", "ovis", "longcat_image"], ),
                               },
                 "optional": {
                               "device": (["default", "cpu"], {"advanced": True}),
@@ -1638,7 +1638,7 @@ class SaveImage:
         return {
             "required": {
                 "images": ("IMAGE", {"tooltip": "The images to save."}),
-                "filename_prefix": ("STRING", {"default": "ComfyUI", "tooltip": "The prefix for the file to save. This may include formatting information such as %date:yyyy-MM-dd% or %Empty Latent Image.width% to include values from nodes."})
+                "filename_prefix": ("STRING", {"default": "ComfyUI_%year%%month%%day%-%hour%%minute%%second%", "tooltip": "The prefix for the file to save. This may include formatting information such as %date:yyyy-MM-dd% or %Empty Latent Image.width% to include values from nodes."})
             },
             "hidden": {
                 "prompt": "PROMPT", "extra_pnginfo": "EXTRA_PNGINFO"

requirements.txt

@@ -31,5 +31,4 @@ spandrel
 pydantic~=2.0
 pydantic-settings~=2.0
 PyOpenGL
-PyOpenGL-accelerate
 glfw

tests-unit/comfy_test/model_detection_test.py

@@ -0,0 +1,112 @@
+import torch
+
+from comfy.model_detection import detect_unet_config, model_config_from_unet_config
+import comfy.supported_models
+
+
+def _make_longcat_comfyui_sd():
+    """Minimal ComfyUI-format state dict for pre-converted LongCat-Image weights."""
+    sd = {}
+    H = 32  # Reduce hidden state dimension to reduce memory usage
+    C_IN = 16
+    C_CTX = 3584
+
+    sd["img_in.weight"] = torch.empty(H, C_IN * 4)
+    sd["img_in.bias"] = torch.empty(H)
+    sd["txt_in.weight"] = torch.empty(H, C_CTX)
+    sd["txt_in.bias"] = torch.empty(H)
+
+    sd["time_in.in_layer.weight"] = torch.empty(H, 256)
+    sd["time_in.in_layer.bias"] = torch.empty(H)
+    sd["time_in.out_layer.weight"] = torch.empty(H, H)
+    sd["time_in.out_layer.bias"] = torch.empty(H)
+
+    sd["final_layer.adaLN_modulation.1.weight"] = torch.empty(2 * H, H)
+    sd["final_layer.adaLN_modulation.1.bias"] = torch.empty(2 * H)
+    sd["final_layer.linear.weight"] = torch.empty(C_IN * 4, H)
+    sd["final_layer.linear.bias"] = torch.empty(C_IN * 4)
+
+    for i in range(19):
+        sd[f"double_blocks.{i}.img_attn.norm.key_norm.weight"] = torch.empty(128)
+        sd[f"double_blocks.{i}.img_attn.qkv.weight"] = torch.empty(3 * H, H)
+        sd[f"double_blocks.{i}.img_mod.lin.weight"] = torch.empty(H, H)
+    for i in range(38):
+        sd[f"single_blocks.{i}.modulation.lin.weight"] = torch.empty(H, H)
+
+    return sd
+
+
+def _make_flux_schnell_comfyui_sd():
+    """Minimal ComfyUI-format state dict for standard Flux Schnell."""
+    sd = {}
+    H = 32  # Reduce hidden state dimension to reduce memory usage
+    C_IN = 16
+
+    sd["img_in.weight"] = torch.empty(H, C_IN * 4)
+    sd["img_in.bias"] = torch.empty(H)
+    sd["txt_in.weight"] = torch.empty(H, 4096)
+    sd["txt_in.bias"] = torch.empty(H)
+
+    sd["double_blocks.0.img_attn.norm.key_norm.weight"] = torch.empty(128)
+    sd["double_blocks.0.img_attn.qkv.weight"] = torch.empty(3 * H, H)
+    sd["double_blocks.0.img_mod.lin.weight"] = torch.empty(H, H)
+
+    for i in range(19):
+        sd[f"double_blocks.{i}.img_attn.norm.key_norm.weight"] = torch.empty(128)
+    for i in range(38):
+        sd[f"single_blocks.{i}.modulation.lin.weight"] = torch.empty(H, H)
+
+    return sd
+
+
+class TestModelDetection:
+    """Verify that first-match model detection selects the correct model
+    based on list ordering and unet_config specificity."""
+
+    def test_longcat_before_schnell_in_models_list(self):
+        """LongCatImage must appear before FluxSchnell in the models list."""
+        models = comfy.supported_models.models
+        longcat_idx = next(i for i, m in enumerate(models) if m.__name__ == "LongCatImage")
+        schnell_idx = next(i for i, m in enumerate(models) if m.__name__ == "FluxSchnell")
+        assert longcat_idx < schnell_idx, (
+            f"LongCatImage (index {longcat_idx}) must come before "
+            f"FluxSchnell (index {schnell_idx}) in the models list"
+        )
+
+    def test_longcat_comfyui_detected_as_longcat(self):
+        sd = _make_longcat_comfyui_sd()
+        unet_config = detect_unet_config(sd, "")
+        assert unet_config is not None
+        assert unet_config["image_model"] == "flux"
+        assert unet_config["context_in_dim"] == 3584
+        assert unet_config["vec_in_dim"] is None
+        assert unet_config["guidance_embed"] is False
+        assert unet_config["txt_ids_dims"] == [1, 2]
+
+        model_config = model_config_from_unet_config(unet_config, sd)
+        assert model_config is not None
+        assert type(model_config).__name__ == "LongCatImage"
+
+    def test_longcat_comfyui_keys_pass_through_unchanged(self):
+        """Pre-converted weights should not be transformed by process_unet_state_dict."""
+        sd = _make_longcat_comfyui_sd()
+        unet_config = detect_unet_config(sd, "")
+        model_config = model_config_from_unet_config(unet_config, sd)
+
+        processed = model_config.process_unet_state_dict(dict(sd))
+        assert "img_in.weight" in processed
+        assert "txt_in.weight" in processed
+        assert "time_in.in_layer.weight" in processed
+        assert "final_layer.linear.weight" in processed
+
+    def test_flux_schnell_comfyui_detected_as_flux_schnell(self):
+        sd = _make_flux_schnell_comfyui_sd()
+        unet_config = detect_unet_config(sd, "")
+        assert unet_config is not None
+        assert unet_config["image_model"] == "flux"
+        assert unet_config["context_in_dim"] == 4096
+        assert unet_config["txt_ids_dims"] == []
+
+        model_config = model_config_from_unet_config(unet_config, sd)
+        assert model_config is not None
+        assert type(model_config).__name__ == "FluxSchnell"