diff --git a/src/renderer/src/aiCore/prepareParams/header.ts b/src/renderer/src/aiCore/prepareParams/header.ts
new file mode 100644
index 0000000000..8c53cbce53
--- /dev/null
+++ b/src/renderer/src/aiCore/prepareParams/header.ts
@@ -0,0 +1,13 @@
+import { isClaude45ReasoningModel } from '@renderer/config/models'
+import type { Assistant, Model } from '@renderer/types'
+import { isToolUseModeFunction } from '@renderer/utils/assistant'
+
+const INTERLEAVED_THINKING_HEADER = 'interleaved-thinking-2025-05-14'
+
+export function addAnthropicHeaders(assistant: Assistant, model: Model): string[] {
+  const anthropicHeaders: string[] = []
+  if (isClaude45ReasoningModel(model) && isToolUseModeFunction(assistant)) {
+    anthropicHeaders.push(INTERLEAVED_THINKING_HEADER)
+  }
+  return anthropicHeaders
+}
diff --git a/src/renderer/src/aiCore/prepareParams/parameterBuilder.ts b/src/renderer/src/aiCore/prepareParams/parameterBuilder.ts
index 397c481cf3..e865f9f15f 100644
--- a/src/renderer/src/aiCore/prepareParams/parameterBuilder.ts
+++ b/src/renderer/src/aiCore/prepareParams/parameterBuilder.ts
@@ -7,10 +7,12 @@ import { anthropic } from '@ai-sdk/anthropic'
 import { google } from '@ai-sdk/google'
 import { vertexAnthropic } from '@ai-sdk/google-vertex/anthropic/edge'
 import { vertex } from '@ai-sdk/google-vertex/edge'
+import { combineHeaders } from '@ai-sdk/provider-utils'
 import type { WebSearchPluginConfig } from '@cherrystudio/ai-core/built-in/plugins'
 import { isBaseProvider } from '@cherrystudio/ai-core/core/providers/schemas'
 import { loggerService } from '@logger'
 import {
+  isAnthropicModel,
   isGenerateImageModel,
   isOpenRouterBuiltInWebSearchModel,
   isReasoningModel,
@@ -19,6 +21,8 @@ import {
   isSupportedThinkingTokenModel,
   isWebSearchModel
 } from '@renderer/config/models'
+import { isAwsBedrockProvider } from '@renderer/config/providers'
+import { isVertexProvider } from '@renderer/hooks/useVertexAI'
 import { getAssistantSettings, getDefaultModel } from '@renderer/services/AssistantService'
 import store from '@renderer/store'
 import type { CherryWebSearchConfig } from '@renderer/store/websearch'
@@ -34,6 +38,7 @@ import { setupToolsConfig } from '../utils/mcp'
 import { buildProviderOptions } from '../utils/options'
 import { getAnthropicThinkingBudget } from '../utils/reasoning'
 import { buildProviderBuiltinWebSearchConfig } from '../utils/websearch'
+import { addAnthropicHeaders } from './header'
 import { supportsTopP } from './modelCapabilities'
 import { getTemperature, getTopP } from './modelParameters'
 
@@ -172,13 +177,21 @@ export async function buildStreamTextParams(
     }
   }
 
+  let headers: Record<string, string | undefined> = options.requestOptions?.headers ?? {}
+
+  // https://docs.claude.com/en/docs/build-with-claude/extended-thinking#interleaved-thinking
+  if (!isVertexProvider(provider) && !isAwsBedrockProvider(provider) && isAnthropicModel(model)) {
+    const newBetaHeaders = { 'anthropic-beta': addAnthropicHeaders(assistant, model).join(',') }
+    headers = combineHeaders(headers, newBetaHeaders)
+  }
+
   // 构建基础参数
   const params: StreamTextParams = {
     messages: sdkMessages,
     maxOutputTokens: maxTokens,
     temperature: getTemperature(assistant, model),
     abortSignal: options.requestOptions?.signal,
-    headers: options.requestOptions?.headers,
+    headers,
     providerOptions,
     stopWhen: stepCountIs(20),
     maxRetries: 0
diff --git a/src/renderer/src/config/models/websearch.ts b/src/renderer/src/config/models/websearch.ts
index 418c81133d..f012be7cfa 100644
--- a/src/renderer/src/config/models/websearch.ts
+++ b/src/renderer/src/config/models/websearch.ts
@@ -70,7 +70,7 @@ export function isWebSearchModel(model: Model): boolean {
   // bedrock和vertex不支持
   if (
     isAnthropicModel(model) &&
-    (provider.id === SystemProviderIds['aws-bedrock'] || provider.id === SystemProviderIds.vertexai)
+    !(provider.id === SystemProviderIds['aws-bedrock'] || provider.id === SystemProviderIds.vertexai)
   ) {
     return CLAUDE_SUPPORTED_WEBSEARCH_REGEX.test(modelId)
   }
diff --git a/src/renderer/src/config/providers.ts b/src/renderer/src/config/providers.ts
index 0f2b6cfadd..1e25a550f1 100644
--- a/src/renderer/src/config/providers.ts
+++ b/src/renderer/src/config/providers.ts
@@ -1573,6 +1573,10 @@ export function isAIGatewayProvider(provider: Provider): boolean {
   return provider.type === 'ai-gateway'
 }
 
+export function isAwsBedrockProvider(provider: Provider): boolean {
+  return provider.type === 'aws-bedrock'
+}
+
 const NOT_SUPPORT_API_VERSION_PROVIDERS = ['github', 'copilot', 'perplexity'] as const satisfies SystemProviderId[]
 
 export const isSupportAPIVersionProvider = (provider: Provider) => {
diff --git a/src/renderer/src/pages/home/Inputbar/tools/urlContextTool.tsx b/src/renderer/src/pages/home/Inputbar/tools/urlContextTool.tsx
index 037d43e19f..bb38e67b0e 100644
--- a/src/renderer/src/pages/home/Inputbar/tools/urlContextTool.tsx
+++ b/src/renderer/src/pages/home/Inputbar/tools/urlContextTool.tsx
@@ -1,4 +1,4 @@
-import { isGeminiModel } from '@renderer/config/models'
+import { isAnthropicModel, isGeminiModel } from '@renderer/config/models'
 import { isSupportUrlContextProvider } from '@renderer/config/providers'
 import { defineTool, registerTool, TopicType } from '@renderer/pages/home/Inputbar/types'
 import { getProviderByModel } from '@renderer/services/AssistantService'
@@ -10,9 +10,8 @@ const urlContextTool = defineTool({
   label: (t) => t('chat.input.url_context'),
   visibleInScopes: [TopicType.Chat],
   condition: ({ model }) => {
-    if (!isGeminiModel(model)) return false
     const provider = getProviderByModel(model)
-    return !!provider && isSupportUrlContextProvider(provider)
+    return !!provider && isSupportUrlContextProvider(provider) && (isGeminiModel(model) || isAnthropicModel(model))
   },
   render: ({ assistant }) => <UrlContextButton assistantId={assistant.id} />
 })