diff --git a/api/app/clients/OpenAIClient.js b/api/app/clients/OpenAIClient.js
index 2c075fdf72a..368e7d6e84b 100644
--- a/api/app/clients/OpenAIClient.js
+++ b/api/app/clients/OpenAIClient.js
@@ -1066,9 +1066,14 @@ ${convo}
     });
   }
 
-  getStreamText() {
+  /**
+   *
+   * @param {string[]} [intermediateReply]
+   * @returns {string}
+   */
+  getStreamText(intermediateReply) {
     if (!this.streamHandler) {
-      return '';
+      return intermediateReply?.join('') ?? '';
     }
 
     let thinkMatch;
@@ -1088,7 +1093,10 @@ ${convo}
       }
     }
 
-    const reasoningTokens = reasoningText.length > 0 ? `:::thinking\n${reasoningText}\n:::\n` : '';
+    const reasoningTokens =
+      reasoningText.length > 0
+        ? `:::thinking\n${reasoningText.replace('<think>', '').replace('</think>', '').trim()}\n:::\n`
+        : '';
 
     return `${reasoningTokens}${this.streamHandler.tokens.join('')}`;
   }
@@ -1327,11 +1335,19 @@ ${convo}
         streamPromise = new Promise((resolve) => {
           streamResolve = resolve;
         });
+        /** @type {OpenAI.OpenAI.CompletionCreateParamsStreaming} */
+        const params = {
+          ...modelOptions,
+          stream: true,
+        };
+        if (
+          this.options.endpoint === EModelEndpoint.openAI ||
+          this.options.endpoint === EModelEndpoint.azureOpenAI
+        ) {
+          params.stream_options = { include_usage: true };
+        }
         const stream = await openai.beta.chat.completions
-          .stream({
-            ...modelOptions,
-            stream: true,
-          })
+          .stream(params)
           .on('abort', () => {
             /* Do nothing here */
           })
@@ -1471,7 +1487,7 @@ ${convo}
         err?.message?.includes('abort') ||
         (err instanceof OpenAI.APIError && err?.message?.includes('abort'))
       ) {
-        return intermediateReply.join('');
+        return this.getStreamText(intermediateReply);
       }
       if (
         err?.message?.includes(
@@ -1489,7 +1505,7 @@ ${convo}
         if (this.streamHandler && this.streamHandler.reasoningTokens.length) {
           return this.getStreamText();
         } else if (intermediateReply.length > 0) {
-          return intermediateReply.join('');
+          return this.getStreamText(intermediateReply);
         } else {
           throw err;
         }
@@ -1497,7 +1513,7 @@ ${convo}
         if (this.streamHandler && this.streamHandler.reasoningTokens.length) {
           return this.getStreamText();
         } else if (intermediateReply.length > 0) {
-          return intermediateReply.join('');
+          return this.getStreamText(intermediateReply);
         } else {
           throw err;
         }