diff --git a/lib/ai/krea-models.ts b/lib/ai/krea-models.ts
index 72b234f98..f272048d7 100644
--- a/lib/ai/krea-models.ts
+++ b/lib/ai/krea-models.ts
@@ -78,6 +78,9 @@ function createImageConfig(fields: string[]) {
 }
 
 function createVideoDurationOptions(modelId: string) {
+  if (modelId.includes("/bytedance/seedance-2")) {
+    return Array.from({ length: 12 }, (_, index) => index + 4);
+  }
   if (modelId.includes("/minimax/hailuo-02") || modelId.includes("/minimax/hailuo-2.3")) {
     return [6, 10];
   }
@@ -114,13 +117,18 @@ function createVideoCapabilities(modelId: string, fields: string[]) {
 
   const durationOptions = fields.includes("duration") ? createVideoDurationOptions(modelId) : [5];
   const resolutionOptions = fields.includes("resolution")
-    ? (modelId.includes("/minimax/") ? ["720p", "1080p"] : ["480p", "720p", "1080p"])
+    ? modelId.includes("/bytedance/seedance-2")
+      ? ["480p", "720p"]
+      : (modelId.includes("/minimax/") ? ["720p", "1080p"] : ["480p", "720p", "1080p"])
     : ["720p"];
+  const ratioOptions = modelId.includes("/bytedance/seedance-2")
+    ? ["16:9", "9:16"]
+    : ["16:9", "9:16", "1:1", "4:3", "3:4", "21:9"];
 
   return {
     supportedModes: Array.from(supportedModes),
     supportedResolutions: resolutionOptions,
-    supportedRatios: ["16:9", "9:16", "1:1", "4:3", "3:4", "21:9"],
+    supportedRatios: ratioOptions,
     durationRange: {
       min: Math.min(...durationOptions),
       max: Math.max(...durationOptions),
diff --git a/lib/ai/providers/krea.ts b/lib/ai/providers/krea.ts
index 361b93590..807b4942f 100644
--- a/lib/ai/providers/krea.ts
+++ b/lib/ai/providers/krea.ts
@@ -325,6 +325,9 @@ function normalizeBatchSize(value?: number) {
 
 function normalizeVideoDuration(duration: unknown, endpoint: string) {
   const value = Number.isFinite(Number(duration)) ? Math.round(Number(duration)) : 5;
+  if (endpoint.includes("/bytedance/seedance-2")) {
+    return clamp(value || 5, 4, 15);
+  }
   if (endpoint.includes("/minimax/hailuo-02") || endpoint.includes("/minimax/hailuo-2.3")) {
     return clamp(value || 6, 6, 10);
   }
@@ -345,6 +348,9 @@ function normalizeVideoDuration(duration: unknown, endpoint: string) {
 
 function normalizeVideoResolution(resolution: unknown, endpoint: string) {
   const normalized = normalizeText(String(resolution || "")).toLowerCase();
+  if (endpoint.includes("/bytedance/seedance-2")) {
+    return normalized === "480p" ? "480p" : "720p";
+  }
   if (endpoint.includes("/minimax/")) {
     if (normalized === "1080p") return "1080p";
     if (normalized === "512p" || normalized === "480p") return "512p";
@@ -356,6 +362,9 @@ function normalizeVideoResolution(resolution: unknown, endpoint: string) {
 
 function normalizeVideoAspectRatio(ratio: unknown, endpoint: string) {
   const normalized = normalizeAspectRatio(String(ratio || ""), "16:9");
+  if (endpoint.includes("/bytedance/seedance-2")) {
+    return normalized === "9:16" ? "9:16" : "16:9";
+  }
   if (endpoint.includes("/openai/sora-2")) {
     return normalized === "9:16" ? "9:16" : "16:9";
   }
@@ -728,6 +737,11 @@ async function requestKreaJob(
   if (!jobId) {
     throw new Error("Krea 未返回任务 ID");
   }
+  console.log("[Krea] Job accepted:", {
+    endpoint,
+    jobId,
+    status: normalizeText(payload?.status) || null,
+  });
   return { ...payload, job_id: jobId };
 }
 
@@ -771,6 +785,12 @@ async function waitForKreaJob(
       return payload;
     }
     if (status === "failed" || status === "cancelled") {
+      console.error("[Krea] Job failed:", {
+        jobId,
+        kind,
+        status,
+        response: stringifyForLog(payload),
+      });
       throw new Error(String(payload?.error || payload?.message || "Krea 任务失败"));
     }
 
@@ -821,6 +841,15 @@ function buildKreaBody(params: {
   const required = new Set(requiredFields);
   const body: Record<string, any> = {};
   const isVideo = kind === "video";
+  const videoMode =
+    isVideo
+      ? videoParams?.mode ||
+        (imageUrls.length > 1
+          ? "first-last-frame"
+          : imageUrls.length > 0
+            ? "first-frame"
+            : "text-to-video")
+      : undefined;
   const hasImageReference =
     kind !== "video" && imageUrls.length > 0 && hasKreaSourceImageField(fields);
   const requestedImageAspectRatio = normalizeText(imageParams?.aspectRatio).toLowerCase();
@@ -914,14 +943,26 @@ function buildKreaBody(params: {
     body.characterReferenceImages = imageUrls.slice(0, 4);
   }
 
-  if (fields.has("referenceImages") && imageUrls.length > 0) {
+  if (
+    fields.has("referenceImages") &&
+    imageUrls.length > 0 &&
+    (!isVideo || videoMode === "reference-images")
+  ) {
     body.referenceImages = endpoint.includes("/image/runway/gen-4-image")
       ? buildTaggedReferences(imageUrls, "ref", 3)
       : imageUrls.slice(0, endpoint.includes("/seedance-2") ? 9 : 4);
   }
 
-  if (fields.has("startImage") && imageUrls[0]) body.startImage = imageUrls[0];
-  if (fields.has("endImage") && imageUrls[1]) body.endImage = imageUrls[1];
+  if (
+    fields.has("startImage") &&
+    imageUrls[0] &&
+    (!isVideo || videoMode === "first-frame" || videoMode === "first-last-frame")
+  ) {
+    body.startImage = imageUrls[0];
+  }
+  if (fields.has("endImage") && imageUrls[1] && (!isVideo || videoMode === "first-last-frame")) {
+    body.endImage = imageUrls[1];
+  }
   if (fields.has("init_image_url") && imageUrls[0]) body.init_image_url = imageUrls[0];
   if (fields.has("references") && imageUrls[0]) {
     body.references = [{ type: "image", uri: imageUrls[0] }];