fix: 可灵替换为Seedance 2.0 + 清理旧GPU计算逻辑

app/cost_estimator.py

@@ -39,13 +39,13 @@ MODEL_PRICING = {
         "features": ["T2V", "I2V"],
         "recommended_for": ["standard", "batch"],
     },
-    "kling-v2-1-master": {
+    "doubao-seedance-2-0-260128": {
-        "name": "可灵 Kling 2.1 Master (T2V)",
+        "name": "豆包 Seedance 2.0 (T2V)",
-        "price_per_second": 0.10,
+        "price_per_second": 0.08,
         "quality_score": 9.0,
         "generation_speed": "slow",
-        "description": "旗舰级文生视频，最高质量",
+        "description": "字节跳动旗舰视频生成，支持音效同步",
-        "features": ["T2V", "I2V"],
+        "features": ["T2V", "I2V", "Ref2V", "音效"],
         "recommended_for": ["premium", "cinematic"],
     },
 }
@@ -70,12 +70,12 @@ def estimate_scene_cost(storyboard: List[Dict[str, Any]], fps: int = 24) -> int:
     return total_frames
 
 
-def estimate_model_cost(model_id: str, total_frames: int) -> Dict[str, Any]:
+def estimate_model_cost(model_id: str, total_frames: int, fps: int = 24) -> Dict[str, Any]:
     """
     Estimate cost for a specific model.
     
     Args:
-        model_id: Model identifier (wan2.2, wan2.7, vidu2.0)
+        model_id: Model identifier (e.g., wan2.6-t2v, doubao-seedance-2-0-260128)
         total_frames: Total frames to generate
     
     Returns:
@@ -85,28 +85,14 @@ def estimate_model_cost(model_id: str, total_frames: int) -> Dict[str, Any]:
         raise ValueError(f"Unknown model: {model_id}")
     
     model = MODEL_PRICING[model_id]
-    base_cost = total_frames * model["price_per_frame"]
-    
-    # Add GPU compute overhead for local models
-    if "Local GPU" in model["name"]:
-        # Estimate GPU time: ~10 seconds per frame on 4090
-        gpu_seconds = total_frames * 10
-        # GPU cost: $0.50/hour = $0.000139/second
-        gpu_cost = gpu_seconds * 0.000139
-        total_cost = base_cost + gpu_cost
-    else:
-        # Cloud API includes compute in price
-        total_cost = base_cost
-        gpu_cost = 0
     
     return {
         "model_id": model_id,
         "model_name": model["name"],
         "total_frames": total_frames,
-        "price_per_frame": model["price_per_frame"],
+        "fps": fps,
-        "base_cost": round(base_cost, 4),
+        "price_per_second": model["price_per_second"],
-        "gpu_cost": round(gpu_cost, 4),
+        "total_cost": round(total_frames * model["price_per_second"] / fps, 4),
-        "total_cost": round(total_cost, 4),
         "quality_score": model["quality_score"],
         "generation_speed": model["generation_speed"],
         "description": model["description"],
@@ -132,7 +118,7 @@ def estimate_all_models(storyboard: List[Dict[str, Any]], fps: int = 24) -> List
     estimates = []
     for model_id in MODEL_PRICING.keys():
         try:
-            estimate = estimate_model_cost(model_id, total_frames)
+            estimate = estimate_model_cost(model_id, total_frames, fps)
             estimate["scene_count"] = scene_count
             estimate["fps"] = fps
             estimates.append(estimate)
@@ -188,11 +174,7 @@ def format_cost_summary(estimates: List[Dict[str, Any]]) -> str:
         lines.append(f"  生成速度: {est['generation_speed']}")
         lines.append(f"  功能: {', '.join(est['features'])}")
         lines.append(f"  描述: {est['description']}")
-        lines.append(f"  费用明细:")
+        lines.append(f"  费用: 每秒 ${est['price_per_second']:.4f} × {est['total_frames']}帧@{est['fps']}fps = ${est['total_cost']:.4f}")
-        lines.append(f"    - 基础费用: ${est['base_cost']:.4f}")
-        if est['gpu_cost'] > 0:
-            lines.append(f"    - GPU计算: ${est['gpu_cost']:.4f}")
-        lines.append(f"    - 总计: ${est['total_cost']:.4f}")
         lines.append("")
     
     lines.append("=" * 70)