diff --git a/src/renderer/src/config/models.ts b/src/renderer/src/config/models.ts
index 0e744131ad..acfd8d2915 100644
--- a/src/renderer/src/config/models.ts
+++ b/src/renderer/src/config/models.ts
@@ -206,7 +206,7 @@ export const FUNCTION_CALLING_MODELS = [
   'gpt-4o-mini',
   'gpt-4',
   'gpt-4.5',
-  'o1(?:-[\\w-]+)?',
+  'o(1|3|4)(?:-[\\w-]+)?',
   'claude',
   'qwen',
   'qwen3',
diff --git a/src/renderer/src/pages/home/Messages/Blocks/ThinkingBlock.tsx b/src/renderer/src/pages/home/Messages/Blocks/ThinkingBlock.tsx
index 2e49e9f1ad..f1d546bd58 100644
--- a/src/renderer/src/pages/home/Messages/Blocks/ThinkingBlock.tsx
+++ b/src/renderer/src/pages/home/Messages/Blocks/ThinkingBlock.tsx
@@ -52,6 +52,7 @@ const ThinkingBlock: React.FC<Props> = ({ block }) => {
     }
   }, [block.content, t])
 
+  // FIXME: 这里统计的和请求处统计的有一定误差
   useEffect(() => {
     if (isThinking) {
       intervalId.current = setInterval(() => {
diff --git a/src/renderer/src/providers/AiProvider/OpenAIProvider.ts b/src/renderer/src/providers/AiProvider/OpenAIProvider.ts
index 51c690ee41..747dad5986 100644
--- a/src/renderer/src/providers/AiProvider/OpenAIProvider.ts
+++ b/src/renderer/src/providers/AiProvider/OpenAIProvider.ts
@@ -428,7 +428,6 @@ export abstract class BaseOpenAiProvider extends BaseProvider {
       type: 'input_text'
     }
     if (isSupportedReasoningEffortOpenAIModel(model)) {
-      systemMessageInput.text = `Formatting re-enabled${systemMessageInput.text ? '\n' + systemMessageInput.text : ''}`
       systemMessage.role = 'developer'
     }
 
@@ -640,10 +639,10 @@ export abstract class BaseOpenAiProvider extends BaseProvider {
           break
         }
         switch (chunk.type) {
-          case 'response.created':
-            time_first_token_millsec = new Date().getTime()
-            break
           case 'response.output_item.added':
+            if (time_first_token_millsec === 0) {
+              time_first_token_millsec = new Date().getTime()
+            }
             if (chunk.item.type === 'function_call') {
               outputItems.push(chunk.item)
             }