diff --git a/src/ts/model/modellist.ts b/src/ts/model/modellist.ts
index 1367399f..bb335228 100644
--- a/src/ts/model/modellist.ts
+++ b/src/ts/model/modellist.ts
@@ -15,7 +15,8 @@ export enum LLMFlags{
     mustStartWithUserInput,
     poolSupported,
     hasVideoInput,
-    OAICompletionTokens
+    OAICompletionTokens,
+    DeveloperRole
 }
 
 export enum LLMProvider{
@@ -451,7 +452,8 @@ export const LLMModels: LLMModel[] = [
             LLMFlags.hasStreaming,
             LLMFlags.OAICompletionTokens,
             LLMFlags.hasFullSystemPrompt,
-            LLMFlags.hasImageInput
+            LLMFlags.hasImageInput,
+            LLMFlags.DeveloperRole
         ],
         parameters: OpenAIParameters,
         tokenizer: LLMTokenizer.tiktokenO200Base
diff --git a/src/ts/process/request.ts b/src/ts/process/request.ts
index e77297d8..412f7918 100644
--- a/src/ts/process/request.ts
+++ b/src/ts/process/request.ts
@@ -237,7 +237,7 @@ interface OpenAIImageContents {
 type OpenAIContents = OpenAITextContents|OpenAIImageContents
 
 export interface OpenAIChatExtra {
-    role: 'system'|'user'|'assistant'|'function'
+    role: 'system'|'user'|'assistant'|'function'|'developer'
     content: string|OpenAIContents[]
     memo?:string
     name?:string
@@ -555,6 +555,17 @@ async function requestOpenAI(arg:RequestDataArgumentExtended):Promise<requestDat
                 }
             }
         }
+
+        if(arg.modelInfo.flags.includes(LLMFlags.DeveloperRole)){
+            reformatedChat = reformatedChat.map((v) => {
+                if(v.role === 'system'){
+                    return {
+                        ...v,
+                        role: 'developer'
+                    }
+                }
+            })
+        }
     
         const res = await globalFetch(arg.customURL ?? "https://api.mistral.ai/v1/chat/completions", {
             body: applyParameters({