Fix Z-Image 3070 fast-start workflow

optimized/text-to-image/zimage-turbo-3070-fast-start/README.md

@@ -13,8 +13,10 @@ This master stays close to the official `Z-Image Turbo` example because that is
 
 ## Workflow asset
 
+- `workflow.json`
 - `workflow.png`
-- Load it by dragging the PNG into ComfyUI.
+- Prefer `workflow.json` for current testing and editing.
+- `workflow.png` is the original embedded example import.
 
 ## Direct test command
 
@@ -22,7 +24,7 @@ You can also submit it straight to the live ComfyUI server with:
 
 `node scripts/submit-workflow-test.mjs --workflow optimized/text-to-image/zimage-turbo-3070-fast-start/workflow.png --prompt "<your prompt>"`
 
-That path reads the embedded PNG `prompt` chunk, applies text-to-image overrides, submits the job, polls history, and downloads the outputs locally.
+That path reads either the JSON workflow or the embedded PNG `prompt` chunk, applies text-to-image overrides, submits the job, polls history, and downloads the outputs locally.
 
 ## Built from
 
@@ -38,7 +40,14 @@ That path reads the embedded PNG `prompt` chunk, applies text-to-image overrides
 
 - Official model wiring
 - Official `qwen_3_4b` text encoder path
-- Embedded PNG workflow format for easy import
+- The original embedded PNG workflow as a reference import
+
+## What I intentionally changed
+
+- switched the maintained test target to `workflow.json`
+- repointed the loader names to the live server filenames
+- lowered the default latent size to `768x768`
+- lowered the default sampler steps to `6`
 
 ## What I intentionally did not add yet
 

optimized/text-to-image/zimage-turbo-3070-fast-start/workflow.json

@@ -0,0 +1,128 @@
+{
+  "3": {
+    "inputs": {
+      "seed": 47447417949230,
+      "steps": 6,
+      "cfg": 1,
+      "sampler_name": "euler",
+      "scheduler": "simple",
+      "denoise": 1,
+      "model": [
+        "16",
+        0
+      ],
+      "positive": [
+        "6",
+        0
+      ],
+      "negative": [
+        "7",
+        0
+      ],
+      "latent_image": [
+        "13",
+        0
+      ]
+    },
+    "class_type": "KSampler",
+    "_meta": {
+      "title": "KSampler"
+    }
+  },
+  "6": {
+    "inputs": {
+      "text": "cute anime style girl with massive fluffy fennec ears and a big fluffy tail blonde messy long hair blue eyes wearing a maid outfit with a long black gold leaf pattern dress and a white apron, it is a postcard held by a hand in front of a beautiful realistic city at sunset and there is cursive writing that says \"ZImage, Now in ComfyUI\"",
+      "clip": [
+        "18",
+        0
+      ]
+    },
+    "class_type": "CLIPTextEncode",
+    "_meta": {
+      "title": "CLIP Text Encode (Positive Prompt)"
+    }
+  },
+  "7": {
+    "inputs": {
+      "text": "blurry ugly bad",
+      "clip": [
+        "18",
+        0
+      ]
+    },
+    "class_type": "CLIPTextEncode",
+    "_meta": {
+      "title": "CLIP Text Encode (Negative Prompt)"
+    }
+  },
+  "8": {
+    "inputs": {
+      "samples": [
+        "3",
+        0
+      ],
+      "vae": [
+        "17",
+        0
+      ]
+    },
+    "class_type": "VAEDecode",
+    "_meta": {
+      "title": "VAE Decode"
+    }
+  },
+  "9": {
+    "inputs": {
+      "filename_prefix": "zimage-3070-fast-start",
+      "images": [
+        "8",
+        0
+      ]
+    },
+    "class_type": "SaveImage",
+    "_meta": {
+      "title": "Save Image"
+    }
+  },
+  "13": {
+    "inputs": {
+      "width": 768,
+      "height": 768,
+      "batch_size": 1
+    },
+    "class_type": "EmptySD3LatentImage",
+    "_meta": {
+      "title": "EmptySD3LatentImage"
+    }
+  },
+  "16": {
+    "inputs": {
+      "unet_name": "zImageTurbo_turbo.safetensors",
+      "weight_dtype": "default"
+    },
+    "class_type": "UNETLoader",
+    "_meta": {
+      "title": "Load Diffusion Model"
+    }
+  },
+  "17": {
+    "inputs": {
+      "vae_name": "ae.safetensors"
+    },
+    "class_type": "VAELoader",
+    "_meta": {
+      "title": "Load VAE"
+    }
+  },
+  "18": {
+    "inputs": {
+      "clip_name": "Qwen\\qwen_3_4b.safetensors",
+      "type": "lumina2",
+      "device": "default"
+    },
+    "class_type": "CLIPLoader",
+    "_meta": {
+      "title": "Load CLIP"
+    }
+  }
+}