From d6a06e0cd03f9cacf8df43355dcda6c9bd8b1676 Mon Sep 17 00:00:00 2001
From: Your Name <your.email@example.com>
Date: Thu, 19 Mar 2026 00:46:47 +0800
Subject: [PATCH] fix: require explicit multimodal flags

---
 app/(chat)/api/chat/route.ts |  3 ++-
 lib/ai/auto-agent-graph.ts   | 33 +--------------------------
 lib/ai/model-router.ts       |  2 +-
 lib/ai/smart-analyzer.ts     | 44 +-----------------------------------
 4 files changed, 5 insertions(+), 77 deletions(-)

diff --git a/app/(chat)/api/chat/route.ts b/app/(chat)/api/chat/route.ts
index 400ae4870..da9137f25 100644
--- a/app/(chat)/api/chat/route.ts
+++ b/app/(chat)/api/chat/route.ts
@@ -175,6 +175,7 @@ import { convertToUIMessages, generateUUID } from "@/lib/utils";
 import { isAiModelAgentAuto } from "@/lib/db/ai-model-flags";
 import { generateTitleFromUserMessage } from "../../actions";
 import { type PostRequestBody, postRequestBodySchema } from "./schema";
+import { isAiModelMultimodal } from "@/lib/db/ai-model-flags";
 
 /**
  * 将图片 URL 转换为 base64 格式
@@ -3206,7 +3207,7 @@ export async function POST(request: Request) {
               : false));
         const isConversationMultimodalModel =
           !selectedModelConfig.isSubModel &&
-          selectedModelConfig.supportsVision &&
+          isAiModelMultimodal(selectedModelConfig) &&
           !selectedModelConfig.supportsImageGen &&
           !isVideoProviderType(selectedModelProviderType);
         requestedModelIsFixedVisual = isFixedVisualModel;
diff --git a/lib/ai/auto-agent-graph.ts b/lib/ai/auto-agent-graph.ts
index caa79b1fc..fabe9e3d6 100644
--- a/lib/ai/auto-agent-graph.ts
+++ b/lib/ai/auto-agent-graph.ts
@@ -964,38 +964,7 @@ function isAgentGenerateTextProviderType(providerType: string): boolean {
 
 function isLikelyVisionCapableModel(item: EnabledModelWithProvider) {
   if (!item.model.isEnabled || item.model.isSubModel) return false;
-  if (item.model.supportsVision) return true;
-  if (isAiModelMultimodal(item.model)) return true;
-
-  const providerType = String(item.provider.type || "");
-  const modelText = `${item.model.displayName || ""} ${item.model.modelId || ""}`.toLowerCase();
-
-  if (providerType === "volcano-multimodal") return true;
-
-  if (
-    providerType === "zhipu" &&
-    /(glm[-_.]?4v|glm[-_.]?4\.?6v|vision|多模态)/i.test(modelText)
-  ) {
-    return true;
-  }
-
-  if (
-    providerType === "alibaba" &&
-    /(qwen|vl|vision|通义|多模态)/i.test(modelText)
-  ) {
-    return true;
-  }
-
-  if (
-    ["custom", "openai", "local"].includes(providerType) &&
-    /(doubao[-_.]?seed[-_.]?2[-_.]?0|seed[-_.]?2[-_.]?0|qwen[-_.]?vl|glm[-_.]?4v|gpt[-_.]?4o|vision|vl|多模态)/i.test(
-      modelText,
-    )
-  ) {
-    return true;
-  }
-
-  return false;
+  return Boolean(item.model.supportsVision) || isAiModelMultimodal(item.model);
 }
 
 function getAgentModelIncompatibleReason(params: {
diff --git a/lib/ai/model-router.ts b/lib/ai/model-router.ts
index 67d3024b8..09e0896e5 100644
--- a/lib/ai/model-router.ts
+++ b/lib/ai/model-router.ts
@@ -78,7 +78,7 @@ function isConversationalCandidate(
   const hasVision = hasVisionCapability(item.model);
 
   if (matchesPreferredProvider) {
-    return requireVision ? hasVision || providerType === "volcano-multimodal" : true;
+    return requireVision ? hasVision : true;
   }
 
   if (IMAGE_ONLY_PROVIDER_TYPES.has(providerType)) {
diff --git a/lib/ai/smart-analyzer.ts b/lib/ai/smart-analyzer.ts
index c81778386..97373af36 100644
--- a/lib/ai/smart-analyzer.ts
+++ b/lib/ai/smart-analyzer.ts
@@ -1686,50 +1686,8 @@ function isLikelyVisionCapableModel(modelWithProvider: {
   };
 }) {
   const model = modelWithProvider.model;
-  const providerType = String(modelWithProvider.provider?.type || "");
   if (!model?.isEnabled || model.isSubModel) return false;
-  if (isAiModelMultimodal(model)) return true;
-  const modelText = `${model.displayName || ""} ${model.modelId || ""}`.toLowerCase();
-  const likelyImageGenerationOnly =
-    !model.supportsVision &&
-    !isAiModelMultimodal(model) &&
-    Boolean(model.supportsImageGen) &&
-    ((["custom", "openai", "local"].includes(providerType) &&
-      /(doubao[-_.]?seed[-_.]?2[-_.]?0|seed[-_.]?2[-_.]?0|seedream|gpt[-_.]?image|nano[-_.]?banana|flux|imagen|image[-_.]?edit)/i.test(
-        modelText,
-      )) ||
-      ["gemini", "huanke-gemini", "alibaba-image", "ruxa-image", "fal-image"].includes(
-        providerType,
-      ));
-  if (likelyImageGenerationOnly) return false;
-  if (model.supportsVision) return true;
-
-  if (providerType === "volcano-vision" || providerType === "volcano-multimodal") return true;
-
-  if (
-    providerType === "zhipu" &&
-    /(glm[-_.]?4v|glm[-_.]?4\.?6v|vision|多模态)/i.test(modelText)
-  ) {
-    return true;
-  }
-
-  if (
-    providerType === "alibaba" &&
-    /(qwen|vl|vision|通义|多模态)/i.test(modelText)
-  ) {
-    return true;
-  }
-
-  if (
-    ["custom", "openai", "local"].includes(providerType) &&
-    /(doubao[-_.]?seed[-_.]?2[-_.]?0|seed[-_.]?2[-_.]?0|qwen[-_.]?vl|glm[-_.]?4v|gpt[-_.]?4o|vision|vl|多模态)/i.test(
-      modelText,
-    )
-  ) {
-    return true;
-  }
-
-  return false;
+  return Boolean(model.supportsVision) || isAiModelMultimodal(model);
 }
 
 function getPreferredVolcanoMultimodalAnalyzerCandidate(