diff --git a/src/components/agent/chat/components/ChatModelSelector.tsx b/src/components/agent/chat/components/ChatModelSelector.tsx
index f67130749..4b5c873cc 100644
--- a/src/components/agent/chat/components/ChatModelSelector.tsx
+++ b/src/components/agent/chat/components/ChatModelSelector.tsx
@@ -15,12 +15,26 @@ import { isAliasProvider } from "@/lib/constants/providerMappings";
 import { providerPoolApi } from "@/lib/api/providerPool";
 import { apiKeyProviderApi } from "@/lib/api/apiKeyProvider";
 import { emitProviderDataChanged } from "@/lib/providerDataEvents";
+import { filterModelsByTheme } from "../utils/modelThemePolicy";
+
+const THEME_LABEL_MAP: Record<string, string> = {
+  general: "通用对话",
+  "social-media": "社媒内容",
+  poster: "图文海报",
+  knowledge: "知识探索",
+  planning: "计划规划",
+  document: "办公文档",
+  video: "短视频",
+  music: "歌词曲谱",
+  novel: "小说创作",
+};
 
 interface ChatModelSelectorProps {
   providerType: string;
   setProviderType: (type: string) => void;
   model: string;
   setModel: (model: string) => void;
+  activeTheme?: string;
   className?: string;
   compactTrigger?: boolean;
   onManageProviders?: () => void;
@@ -32,6 +46,7 @@ export const ChatModelSelector: React.FC<ChatModelSelectorProps> = ({
   setProviderType,
   model,
   setModel,
+  activeTheme,
   className,
   compactTrigger = false,
   onManageProviders,
@@ -50,8 +65,18 @@ export const ChatModelSelector: React.FC<ChatModelSelectorProps> = ({
     );
   }, [configuredProviders, providerType]);
 
-  const { modelIds: currentModels, loading: modelsLoading } =
-    useProviderModels(selectedProvider);
+  const { models: providerModels, loading: modelsLoading } = useProviderModels(
+    selectedProvider,
+    { returnFullMetadata: true },
+  );
+
+  const filteredResult = useMemo(() => {
+    return filterModelsByTheme(activeTheme, providerModels);
+  }, [activeTheme, providerModels]);
+
+  const currentModels = useMemo(() => {
+    return filteredResult.models.map((item) => item.id);
+  }, [filteredResult.models]);
 
   useEffect(() => {
     if (hasInitialized.current) return;
@@ -82,6 +107,29 @@ export const ChatModelSelector: React.FC<ChatModelSelectorProps> = ({
     }
   }, [currentModels, modelsLoading, selectedProvider, setModel]);
 
+  useEffect(() => {
+    if (!import.meta.env.DEV) return;
+    if (!selectedProvider) return;
+    if (!activeTheme) return;
+    if (!filteredResult.usedFallback && filteredResult.filteredOutCount === 0) {
+      return;
+    }
+
+    console.debug("[ChatModelSelector] 主题模型过滤结果", {
+      theme: activeTheme,
+      provider: selectedProvider.key,
+      policyName: filteredResult.policyName,
+      filteredOutCount: filteredResult.filteredOutCount,
+      usedFallback: filteredResult.usedFallback,
+    });
+  }, [
+    activeTheme,
+    filteredResult.policyName,
+    filteredResult.filteredOutCount,
+    filteredResult.usedFallback,
+    selectedProvider,
+  ]);
+
   useEffect(() => {
     if (!open) return;
 
@@ -114,6 +162,14 @@ export const ChatModelSelector: React.FC<ChatModelSelectorProps> = ({
     selectedProvider?.key || providerType || "proxycast-hub";
   const compactProviderLabel =
     selectedProvider?.label || providerType || "ProxyCast Hub";
+  const normalizedTheme = (activeTheme || "").toLowerCase();
+  const activeThemeLabel =
+    THEME_LABEL_MAP[normalizedTheme] || activeTheme || "当前主题";
+  const showThemeFilterHint =
+    normalizedTheme !== "" &&
+    normalizedTheme !== "general" &&
+    !filteredResult.usedFallback &&
+    filteredResult.filteredOutCount > 0;
 
   return (
     <div className={cn("flex items-center", className)}>
@@ -211,6 +267,16 @@ export const ChatModelSelector: React.FC<ChatModelSelectorProps> = ({
               <div className="text-xs font-semibold text-muted-foreground px-2 py-1.5 mb-1">
                 Models
               </div>
+              {showThemeFilterHint && (
+                <div className="text-[11px] text-muted-foreground px-2 pb-1">
+                  已按 {activeThemeLabel} 主题筛选模型
+                </div>
+              )}
+              {normalizedTheme !== "general" && filteredResult.usedFallback && (
+                <div className="text-[11px] text-amber-600 px-2 pb-1">
+                  {activeThemeLabel} 未匹配到主题模型，已展示全部模型
+                </div>
+              )}
 
               <ScrollArea className="flex-1">
                 <div className="space-y-1 p-1">
diff --git a/src/components/agent/chat/components/EmptyState.tsx b/src/components/agent/chat/components/EmptyState.tsx
index 4669c4c02..9883ff1eb 100644
--- a/src/components/agent/chat/components/EmptyState.tsx
+++ b/src/components/agent/chat/components/EmptyState.tsx
@@ -918,6 +918,7 @@ export const EmptyState: React.FC<EmptyStateProps> = ({
                 setProviderType={setProviderType}
                 model={model}
                 setModel={setModel}
+                activeTheme={activeTheme}
                 compactTrigger
                 popoverSide="top"
                 onManageProviders={onManageProviders}
diff --git a/src/components/agent/chat/components/Inputbar/index.tsx b/src/components/agent/chat/components/Inputbar/index.tsx
index 417f328a9..a9ead5353 100644
--- a/src/components/agent/chat/components/Inputbar/index.tsx
+++ b/src/components/agent/chat/components/Inputbar/index.tsx
@@ -104,6 +104,7 @@ interface InputbarProps {
   setProviderType?: (type: string) => void;
   model?: string;
   setModel?: (model: string) => void;
+  activeTheme?: string;
   onManageProviders?: () => void;
 }
 
@@ -128,6 +129,7 @@ export const Inputbar: React.FC<InputbarProps> = ({
   setProviderType,
   model,
   setModel,
+  activeTheme,
   onManageProviders,
 }) => {
   const [activeTools, setActiveTools] = useState<Record<string, boolean>>({});
@@ -381,6 +383,7 @@ export const Inputbar: React.FC<InputbarProps> = ({
               setProviderType={setProviderType}
               model={model}
               setModel={setModel}
+              activeTheme={activeTheme}
               compactTrigger
               popoverSide="top"
               onManageProviders={onManageProviders}
diff --git a/src/components/agent/chat/index.tsx b/src/components/agent/chat/index.tsx
index c0033fa3f..df069c924 100644
--- a/src/components/agent/chat/index.tsx
+++ b/src/components/agent/chat/index.tsx
@@ -1707,6 +1707,7 @@ export function AgentChatPage({
               setProviderType={setProviderType}
               model={model}
               setModel={setModel}
+              activeTheme={activeTheme}
               onManageProviders={handleManageProviders}
               disabled={!projectId}
               onClearMessages={handleClearMessages}
diff --git a/src/components/agent/chat/utils/modelThemePolicy.test.ts b/src/components/agent/chat/utils/modelThemePolicy.test.ts
new file mode 100644
index 000000000..665380e2d
--- /dev/null
+++ b/src/components/agent/chat/utils/modelThemePolicy.test.ts
@@ -0,0 +1,162 @@
+import { describe, expect, it } from "vitest";
+import type { EnhancedModelMetadata } from "@/lib/types/modelRegistry";
+import { filterModelsByTheme } from "./modelThemePolicy";
+
+function createModel(
+  id: string,
+  overrides: Partial<EnhancedModelMetadata> = {},
+): EnhancedModelMetadata {
+  return {
+    id,
+    display_name: id,
+    provider_id: "test-provider",
+    provider_name: "Test Provider",
+    family: null,
+    tier: "pro",
+    capabilities: {
+      vision: false,
+      tools: true,
+      streaming: true,
+      json_mode: true,
+      function_calling: true,
+      reasoning: false,
+    },
+    pricing: null,
+    limits: {
+      context_length: null,
+      max_output_tokens: null,
+      requests_per_minute: null,
+      tokens_per_minute: null,
+    },
+    status: "active",
+    release_date: null,
+    is_latest: false,
+    description: null,
+    source: "local",
+    created_at: 0,
+    updated_at: 0,
+    ...overrides,
+  };
+}
+
+describe("modelThemePolicy", () => {
+  it("poster 主题应过滤掉非图像模型", () => {
+    const models = [
+      createModel("gemini-3-pro-image-preview"),
+      createModel("gemini-3-pro-preview"),
+      createModel("gemini-2.5-computer-use-preview-10-2025"),
+    ];
+
+    const result = filterModelsByTheme("poster", models);
+
+    expect(result.usedFallback).toBe(false);
+    expect(result.models.map((model) => model.id)).toEqual([
+      "gemini-3-pro-image-preview",
+    ]);
+    expect(result.filteredOutCount).toBe(2);
+    expect(result.policyName).toBe("image-only");
+  });
+
+  it("poster 主题在无匹配模型时应回退到原列表", () => {
+    const models = [
+      createModel("gemini-3-pro-preview"),
+      createModel("gpt-4o"),
+    ];
+
+    const result = filterModelsByTheme("poster", models);
+
+    expect(result.usedFallback).toBe(true);
+    expect(result.models).toEqual(models);
+    expect(result.policyName).toBe("fallback-all");
+  });
+
+  it("poster 主题应支持能力推断识别图像模型", () => {
+    const models = [
+      createModel("vendor-creative-v1", {
+        capabilities: {
+          vision: true,
+          tools: false,
+          streaming: true,
+          json_mode: false,
+          function_calling: false,
+          reasoning: false,
+        },
+      }),
+      createModel("generic-chat-v1"),
+    ];
+
+    const result = filterModelsByTheme("poster", models);
+
+    expect(result.usedFallback).toBe(false);
+    expect(result.models.map((model) => model.id)).toEqual([
+      "vendor-creative-v1",
+    ]);
+  });
+
+  it("knowledge 主题应优先保留推理聊天模型", () => {
+    const models = [
+      createModel("gemini-3-pro-image-preview"),
+      createModel("deepseek-reasoner", {
+        capabilities: {
+          vision: false,
+          tools: true,
+          streaming: true,
+          json_mode: true,
+          function_calling: true,
+          reasoning: true,
+        },
+      }),
+      createModel("deepseek-chat"),
+    ];
+
+    const result = filterModelsByTheme("knowledge", models);
+
+    expect(result.usedFallback).toBe(false);
+    expect(result.models.map((model) => model.id)).toEqual([
+      "deepseek-reasoner",
+    ]);
+    expect(result.policyName).toBe("reasoning-priority");
+  });
+
+  it("knowledge 主题在无推理模型时应回退到聊天模型", () => {
+    const models = [
+      createModel("gemini-3-pro-image-preview"),
+      createModel("deepseek-chat"),
+      createModel("text-embedding-3-large"),
+    ];
+
+    const result = filterModelsByTheme("knowledge", models);
+
+    expect(result.usedFallback).toBe(false);
+    expect(result.models.map((model) => model.id)).toEqual(["deepseek-chat"]);
+    expect(result.policyName).toBe("chat-fallback");
+  });
+
+  it("social-media 主题应过滤掉图像和非聊天模型", () => {
+    const models = [
+      createModel("gemini-3-pro-image-preview"),
+      createModel("text-embedding-3-large"),
+      createModel("gpt-4o"),
+    ];
+
+    const result = filterModelsByTheme("social-media", models);
+
+    expect(result.usedFallback).toBe(false);
+    expect(result.models.map((model) => model.id)).toEqual(["gpt-4o"]);
+    expect(result.policyName).toBe("chat-only");
+  });
+
+  it("general 主题不应改动模型列表", () => {
+    const models = [
+      createModel("gemini-3-pro-image-preview"),
+      createModel("gemini-3-pro-preview"),
+    ];
+
+    const result = filterModelsByTheme("general", models);
+
+    expect(result.usedFallback).toBe(false);
+    expect(result.filteredOutCount).toBe(0);
+    expect(result.models).toEqual(models);
+    expect(result.policyName).toBe("none");
+  });
+});
diff --git a/src/components/agent/chat/utils/modelThemePolicy.ts b/src/components/agent/chat/utils/modelThemePolicy.ts
new file mode 100644
index 000000000..e1ca97b09
--- /dev/null
+++ b/src/components/agent/chat/utils/modelThemePolicy.ts
@@ -0,0 +1,197 @@
+import type { EnhancedModelMetadata } from "@/lib/types/modelRegistry";
+
+export interface ThemeModelFilterResult {
+  models: EnhancedModelMetadata[];
+  usedFallback: boolean;
+  filteredOutCount: number;
+  policyName: string;
+}
+
+const IMAGE_INCLUDE_KEYWORDS = [
+  "image",
+  "imagen",
+  "dall-e",
+  "flux",
+  "stable-diffusion",
+  "sdxl",
+  "sd3",
+  "midjourney",
+  "mj",
+  "picture",
+  "绘图",
+  "图像",
+  "生图",
+];
+
+const IMAGE_EXCLUDE_KEYWORDS = [
+  "embedding",
+  "rerank",
+  "tts",
+  "stt",
+  "asr",
+  "transcribe",
+  "audio",
+  "speech",
+  "reasoner",
+  "thinking",
+  "computer-use",
+];
+
+const NON_CHAT_KEYWORDS = [
+  "embedding",
+  "rerank",
+  "tts",
+  "stt",
+  "asr",
+  "transcribe",
+  "audio",
+  "speech",
+  "whisper",
+];
+
+function containsAnyKeyword(text: string, keywords: string[]): boolean {
+  return keywords.some((keyword) => text.includes(keyword));
+}
+
+function buildModelSearchText(model: EnhancedModelMetadata): string {
+  return [
+    model.id,
+    model.display_name,
+    model.family || "",
+    model.description || "",
+  ]
+    .join(" ")
+    .toLowerCase();
+}
+
+function looksLikeImageGenerationModel(model: EnhancedModelMetadata): boolean {
+  const text = buildModelSearchText(model);
+
+  if (
+    containsAnyKeyword(text, IMAGE_EXCLUDE_KEYWORDS) ||
+    containsAnyKeyword(text, NON_CHAT_KEYWORDS)
+  ) {
+    return false;
+  }
+
+  if (containsAnyKeyword(text, IMAGE_INCLUDE_KEYWORDS)) {
+    return true;
+  }
+
+  return (
+    model.capabilities.vision &&
+    !model.capabilities.tools &&
+    !model.capabilities.function_calling &&
+    !model.capabilities.json_mode
+  );
+}
+
+function looksLikeChatModel(model: EnhancedModelMetadata): boolean {
+  const text = buildModelSearchText(model);
+
+  if (containsAnyKeyword(text, NON_CHAT_KEYWORDS)) {
+    return false;
+  }
+
+  return !looksLikeImageGenerationModel(model);
+}
+
+const CHAT_THEME_IDS = new Set([
+  "social-media",
+  "document",
+  "video",
+  "music",
+  "novel",
+]);
+
+export function filterModelsByTheme(
+  theme: string | undefined,
+  models: EnhancedModelMetadata[],
+): ThemeModelFilterResult {
+  const normalizedTheme = theme?.toLowerCase() || "";
+  if (models.length === 0) {
+    return {
+      models,
+      usedFallback: false,
+      filteredOutCount: 0,
+      policyName: "none",
+    };
+  }
+
+  if (normalizedTheme !== "poster") {
+    if (normalizedTheme === "knowledge" || normalizedTheme === "planning") {
+      const reasoningModels = models.filter(
+        (model) => looksLikeChatModel(model) && model.capabilities.reasoning,
+      );
+
+      if (reasoningModels.length > 0) {
+        return {
+          models: reasoningModels,
+          usedFallback: false,
+          filteredOutCount: models.length - reasoningModels.length,
+          policyName: "reasoning-priority",
+        };
+      }
+
+      const chatModels = models.filter(looksLikeChatModel);
+      if (chatModels.length > 0) {
+        return {
+          models: chatModels,
+          usedFallback: false,
+          filteredOutCount: models.length - chatModels.length,
+          policyName: "chat-fallback",
+        };
+      }
+
+      return {
+        models,
+        usedFallback: true,
+        filteredOutCount: 0,
+        policyName: "fallback-all",
+      };
+    }
+
+    if (CHAT_THEME_IDS.has(normalizedTheme)) {
+      const chatModels = models.filter(looksLikeChatModel);
+      if (chatModels.length > 0) {
+        return {
+          models: chatModels,
+          usedFallback: false,
+          filteredOutCount: models.length - chatModels.length,
+          policyName: "chat-only",
+        };
+      }
+
+      return {
+        models,
+        usedFallback: true,
+        filteredOutCount: 0,
+        policyName: "fallback-all",
+      };
+    }
+
+    return {
+      models,
+      usedFallback: false,
+      filteredOutCount: 0,
+      policyName: "none",
+    };
+  }
+
+  const filteredModels = models.filter(looksLikeImageGenerationModel);
+  if (filteredModels.length === 0) {
+    return {
+      models,
+      usedFallback: models.length > 0,
+      filteredOutCount: 0,
+      policyName: "fallback-all",
+    };
+  }
+
+  return {
+    models: filteredModels,
+    usedFallback: false,
+    filteredOutCount: models.length - filteredModels.length,
+    policyName: "image-only",
+  };
+}
diff --git a/vite.config.ts b/vite.config.ts
index 400f9d890..a54d0df07 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -74,8 +74,9 @@ export default defineConfig(({ mode }) => {
   },
   clearScreen: false,
   server: {
+    host: "127.0.0.1",
     port: 1420,
-    strictPort: false,
+    strictPort: true,
     watch: {
       ignored: ["**/src-tauri/**"],
     },