update new model for gpt-4o and gemini-exp

app/utils.ts

@@ -260,6 +260,8 @@ export function isVisionModel(model: string) {
     "gpt-4o",
     "claude-3",
     "gemini-1.5",
+    "gemini-exp",
+    "learnlm",
     "qwen-vl",
     "qwen2-vl",
   ];