feat(model): remove deprecated models

app/api/google/[...path]/route.ts

@@ -57,6 +57,11 @@ export const GET = handle;
 export const POST = handle;
 
 export const runtime = "edge";
+
+// due to Gemini-1.5-pro is not available in Hong Kong, we need to set the preferred region to exclude "Hong Kong (hkg1)".
+// the paid service of the Gemini API is required in the following regions until 8 July 2024. The free service is not available. Therefore, the regions is temporarily disabled.
+// regions include Dublin (dub1, Ireland), Paris (cdg1, France), Frankfurt (fra1, Germany), London (lhr1, UK), and Stockholm (arn1, Sweden).
+// refs: https://ai.google.dev/gemini-api/docs/available-regions
 export const preferredRegion = [
   "bom1",
   "cle1",

app/constant.ts

@@ -197,21 +197,16 @@ export const KnowledgeCutOffDate: Record<string, string> = {
   "gpt-4o-2024-05-13": "2023-10",
   "gpt-4o-mini": "2023-10",
   "gpt-4o-mini-2024-07-18": "2023-10",
-  "gpt-4-vision-preview": "2023-04",
   // After improvements,
   // it's now easier to add "KnowledgeCutOffDate" instead of stupid hardcoding it, as was done previously.
   "gemini-pro": "2023-12",
-  "gemini-pro-vision": "2023-12",
 };
 
 const openaiModels = [
   "gpt-3.5-turbo",
   "gpt-3.5-turbo-1106",
-  "gpt-3.5-turbo-0125",
   "gpt-4",
-  "gpt-4-0613",
   "gpt-4-32k",
-  "gpt-4-32k-0613",
   "gpt-4-turbo",
   "gpt-4-turbo-preview",
   "gpt-4o",
@@ -227,7 +222,6 @@ const googleModels = [
   "gemini-1.0-pro",
   "gemini-1.5-pro-latest",
   "gemini-1.5-flash-latest",
-  "gemini-pro-vision",
 ];
 
 const anthropicModels = [

app/utils.ts

@@ -250,18 +250,7 @@ export function getMessageImages(message: RequestMessage): string[] {
 export function isVisionModel(model: string) {
   // Note: This is a better way using the TypeScript feature instead of `&&` or `||` (ts v5.5.0-dev.20240314 I've been using)
 
-  const visionKeywords = [
-    "vision",
-    "claude-3",
-    "gemini-1.5-pro",
-    "gemini-1.5-flash",
-    "gpt-4o",
-    "gpt-4o-mini",
-  ];
-  const isGpt4Turbo =
-    model.includes("gpt-4-turbo") && !model.includes("preview");
+  const visionKeywords = ["claude-3", "gemini-1.5", "gpt-4"];
 
-  return (
-    visionKeywords.some((keyword) => model.includes(keyword)) || isGpt4Turbo
-  );
+  return visionKeywords.some((keyword) => model.includes(keyword));
 }