diff --git a/src/models/gpt.js b/src/models/gpt.js
index 8540778..4f33f22 100644
--- a/src/models/gpt.js
+++ b/src/models/gpt.js
@@ -21,7 +21,7 @@ export class GPT {
 
     async sendRequest(turns, systemMessage, stop_seq='***') {
         let messages = [{'role': 'system', 'content': systemMessage}].concat(turns);
-
+        messages = strictFormat(messages);
         const pack = {
             model: this.model_name || "gpt-3.5-turbo",
             messages,
@@ -29,7 +29,6 @@ export class GPT {
             ...(this.params || {})
         };
         if (this.model_name.includes('o1')) {
-            pack.messages = strictFormat(messages);
             delete pack.stop;
         }
 
diff --git a/src/models/openrouter.js b/src/models/openrouter.js
index 8e4530a..5cbc090 100644
--- a/src/models/openrouter.js
+++ b/src/models/openrouter.js
@@ -52,6 +52,24 @@ export class OpenRouter {
         return res;
     }
 
+    async sendVisionRequest(messages, systemMessage, imageBuffer) {
+        const imageMessages = [...messages];
+        imageMessages.push({
+            role: "user",
+            content: [
+                { type: "text", text: systemMessage },
+                {
+                    type: "image_url",
+                    image_url: {
+                        url: `data:image/jpeg;base64,${imageBuffer.toString('base64')}`
+                    }
+                }
+            ]
+        });
+        
+        return this.sendRequest(imageMessages, systemMessage);
+    }
+
     async embed(text) {
         throw new Error('Embeddings are not supported by Openrouter.');
     }