{
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  "last_link_id": 11,
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      "size": [
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      "flags": {},
      "order": 0,
      "mode": 0,
      "inputs": [],
      "outputs": [],
      "properties": {
        "Node name for S&R": "Note"
      },
      "widgets_values": [
        "TWEEN MODEL LAB — SPEED + LDF-VFI\n1) Choose a short input video below.  2) Queue Prompt to run the enabled SPEED path.  3) The LDF-VFI path is muted by default; enable its three coral nodes only when you want the heavier sequence model."
      ],
      "color": "#1f3a4d",
      "bgcolor": "#294d66"
    },
    {
      "id": 2,
      "type": "VHS_LoadVideoPath",
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      ],
      "size": [
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      ],
      "flags": {},
      "order": 1,
      "mode": 0,
      "inputs": [
        {
          "name": "meta_batch",
          "shape": 7,
          "type": "VHS_BatchManager",
          "link": null
        },
        {
          "name": "vae",
          "shape": 7,
          "type": "VAE",
          "link": null
        }
      ],
      "outputs": [
        {
          "name": "IMAGE",
          "type": "IMAGE",
          "links": [
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          ]
        },
        {
          "name": "frame_count",
          "type": "INT",
          "links": null
        },
        {
          "name": "audio",
          "type": "AUDIO",
          "links": [
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          ]
        },
        {
          "name": "video_info",
          "type": "VHS_VIDEOINFO",
          "links": null
        }
      ],
      "properties": {
        "cnr_id": "comfyui-videohelpersuite",
        "Node name for S&R": "VHS_LoadVideoPath"
      },
      "widgets_values": {
        "video": "",
        "force_rate": 24,
        "custom_width": 0,
        "custom_height": 0,
        "frame_load_cap": 25,
        "skip_first_frames": 0,
        "select_every_nth": 1,
        "format": "AnimateDiff",
        "videopreview": {
          "hidden": false,
          "paused": false,
          "params": {
            "filename": "",
            "type": "path",
            "format": "video/",
            "force_rate": 24,
            "custom_width": 0,
            "custom_height": 0,
            "frame_load_cap": 25,
            "skip_first_frames": 0,
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      "mode": 0,
      "inputs": [],
      "outputs": [],
      "properties": {
        "Node name for S&R": "Note"
      },
      "widgets_values": [
        "INPUT SAFETY DEFAULTS\n• force_rate = 24 FPS\n• frame_load_cap = 25 (~1 second)\n• dimensions = source size\n\nFor another source rate, change force_rate here and source_fps in the chosen Tween node. The Video Combine frame rate must match target_fps."
      ],
      "color": "#3f3520",
      "bgcolor": "#594b2d"
    },
    {
      "id": 4,
      "type": "LoadSPEEDVFIModel",
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      "flags": {},
      "order": 3,
      "mode": 0,
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        }
      ],
      "properties": {
        "aux_id": "ComfyUI-Tween.git",
        "Node name for S&R": "LoadSPEEDVFIModel"
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      "widgets_values": [
        "speed.pt",
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      "color": "#243b32",
      "bgcolor": "#315244"
    },
    {
      "id": 5,
      "type": "VFIOptimizer",
      "pos": [
        390,
        330
      ],
      "size": [
        310,
        150
      ],
      "flags": {},
      "order": 4,
      "mode": 0,
      "inputs": [
        {
          "name": "images",
          "type": "IMAGE",
          "link": 1
        },
        {
          "name": "model",
          "type": "*",
          "link": 2
        }
      ],
      "outputs": [
        {
          "name": "images",
          "type": "IMAGE",
          "links": [
            3
          ]
        },
        {
          "name": "settings",
          "type": "VFI_SETTINGS",
          "links": [
            5
          ]
        }
      ],
      "properties": {
        "aux_id": "ComfyUI-Tween.git",
        "Node name for S&R": "VFIOptimizer"
      },
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      ],
      "color": "#243b32",
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    },
    {
      "id": 6,
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      ],
      "size": [
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      ],
      "flags": {},
      "order": 5,
      "mode": 0,
      "inputs": [
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          "name": "model",
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          "link": 4
        },
        {
          "name": "settings",
          "shape": 7,
          "type": "VFI_SETTINGS",
          "link": 5
        }
      ],
      "outputs": [
        {
          "name": "images",
          "type": "IMAGE",
          "links": [
            6
          ]
        },
        {
          "name": "oversampled",
          "type": "IMAGE",
          "links": null
        }
      ],
      "properties": {
        "aux_id": "ComfyUI-Tween.git",
        "Node name for S&R": "SPEEDVFIInterpolate"
      },
      "widgets_values": [
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        10,
        true,
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        0
      ],
      "color": "#243b32",
      "bgcolor": "#315244"
    },
    {
      "id": 7,
      "type": "VHS_VideoCombine",
      "pos": [
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        240
      ],
      "size": [
        360,
        340
      ],
      "flags": {},
      "order": 6,
      "mode": 0,
      "inputs": [
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          "type": "IMAGE",
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        },
        {
          "name": "audio",
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          "type": "AUDIO",
          "link": 7
        },
        {
          "name": "meta_batch",
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          "type": "VHS_BatchManager",
          "link": null
        },
        {
          "name": "vae",
          "shape": 7,
          "type": "VAE",
          "link": null
        }
      ],
      "outputs": [
        {
          "name": "Filenames",
          "type": "VHS_FILENAMES",
          "links": null
        }
      ],
      "properties": {
        "cnr_id": "comfyui-videohelpersuite",
        "Node name for S&R": "VHS_VideoCombine"
      },
      "widgets_values": {
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        "loop_count": 0,
        "filename_prefix": "Tween/demo_speed_24_to_48",
        "format": "video/h264-mp4",
        "pix_fmt": "yuv420p",
        "crf": 19,
        "save_metadata": true,
        "trim_to_audio": false,
        "pingpong": false,
        "save_output": true,
        "videopreview": {
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          "paused": false,
          "params": {}
        }
      },
      "color": "#243b32",
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      "mode": 0,
      "inputs": [],
      "outputs": [],
      "properties": {
        "Node name for S&R": "Note"
      },
      "widgets_values": [
        "SPEED — RECOMMENDED, ENABLED\nOne-step diffusion midpoint interpolation. This branch uses target-FPS mode (24→48), a fixed seed, and VFI Optimizer settings. First use downloads the official ~447 MB checkpoint and checksum-pinned runtime."
      ],
      "color": "#234936",
      "bgcolor": "#2d6046"
    },
    {
      "id": 9,
      "type": "Note",
      "pos": [
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      "size": [
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      ],
      "flags": {},
      "order": 8,
      "mode": 0,
      "inputs": [],
      "outputs": [],
      "properties": {
        "Node name for S&R": "Note"
      },
      "widgets_values": [
        "LDF-VFI — ADVANCED, MUTED BY DEFAULT\nRequires an NVIDIA BF16 GPU and roughly 20 GB VRAM; first use downloads ~6.4 GB. To run it, select the three coral nodes below and set Mode → Always. Disable/mute the SPEED output node if you only want LDF. Use 16 sampling steps for the official quality-oriented quick-start setting."
      ],
      "color": "#5a2d2d",
      "bgcolor": "#743b3b"
    },
    {
      "id": 10,
      "type": "LoadLDFVFIModel",
      "pos": [
        390,
        930
      ],
      "size": [
        340,
        190
      ],
      "flags": {},
      "order": 9,
      "mode": 2,
      "inputs": [],
      "outputs": [
        {
          "name": "model",
          "type": "LDF_VFI_MODEL",
          "links": [
            9
          ]
        }
      ],
      "properties": {
        "aux_id": "ComfyUI-Tween.git",
        "Node name for S&R": "LoadLDFVFIModel"
      },
      "widgets_values": [
        "onecat-ai/LDF-VFI",
        256,
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      "color": "#5a2d2d",
      "bgcolor": "#743b3b"
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      "type": "LDFVFIInterpolate",
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      "size": [
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        },
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          "link": 9
        }
      ],
      "outputs": [
        {
          "name": "images",
          "type": "IMAGE",
          "links": [
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          ]
        },
        {
          "name": "generated_sequence",
          "type": "IMAGE",
          "links": null
        }
      ],
      "properties": {
        "aux_id": "ComfyUI-Tween.git",
        "Node name for S&R": "LDFVFIInterpolate"
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      "widgets_values": [
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      "color": "#5a2d2d",
      "bgcolor": "#743b3b"
    },
    {
      "id": 12,
      "type": "VHS_VideoCombine",
      "pos": [
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      ],
      "size": [
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        340
      ],
      "flags": {},
      "order": 11,
      "mode": 2,
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          "type": "AUDIO",
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        {
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          "link": null
        },
        {
          "name": "vae",
          "shape": 7,
          "type": "VAE",
          "link": null
        }
      ],
      "outputs": [
        {
          "name": "Filenames",
          "type": "VHS_FILENAMES",
          "links": null
        }
      ],
      "properties": {
        "cnr_id": "comfyui-videohelpersuite",
        "Node name for S&R": "VHS_VideoCombine"
      },
      "widgets_values": {
        "frame_rate": 48,
        "loop_count": 0,
        "filename_prefix": "Tween/demo_ldf_24_to_48",
        "format": "video/h264-mp4",
        "pix_fmt": "yuv420p",
        "crf": 19,
        "save_metadata": true,
        "trim_to_audio": false,
        "pingpong": false,
        "save_output": true,
        "videopreview": {
          "hidden": false,
          "paused": false,
          "params": {}
        }
      },
      "color": "#5a2d2d",
      "bgcolor": "#743b3b"
    },
    {
      "id": 13,
      "type": "Note",
      "pos": [
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      "size": [
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      ],
      "flags": {},
      "order": 12,
      "mode": 0,
      "inputs": [],
      "outputs": [],
      "properties": {
        "Node name for S&R": "Note"
      },
      "widgets_values": [
        "WHY TWO PATHS?\n\nSPEED\n• Best default for normal pairwise VFI\n• Much smaller and faster\n• 2x midpoint; 4x/8x recursive\n\nLDF-VFI\n• Sequence-native temporal modeling\n• Better suited to long-range coherence\n• 2x–16x, but far heavier\n\nThe LDF demo uses 8 steps for a quicker test. Raise to 16 after the graph is working."
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      "bgcolor": "#594353"
    }
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    },
    {
      "id": 2,
      "title": "2 · SPEED — RECOMMENDED / ENABLED",
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    "links_added_by_ue": [],
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