diff --git a/types/openai.ts b/types/openai.ts
index 2a777b9..8e423da 100644
--- a/types/openai.ts
+++ b/types/openai.ts
@@ -18,12 +18,12 @@ export const OpenAIModels: Record<OpenAIModelID, OpenAIModel> = {
     id: OpenAIModelID.GPT_3_5,
     name: 'GPT-3.5',
     maxLength: 12000,
-    tokenLimit: 3000,
+    tokenLimit: 4000,
   },
   [OpenAIModelID.GPT_4]: {
     id: OpenAIModelID.GPT_4,
     name: 'GPT-4',
     maxLength: 24000,
-    tokenLimit: 6000,
+    tokenLimit: 8000,
   },
 };