Try multiple model names for AI API

src/app/api/ai/route.ts

@@ -40,7 +40,17 @@ export async function POST(request: Request) {
 
     const allMessages = [systemMessage, ...messages];
 
-    // Call LiteLLM
+    // Try different MiniMax model formats
+    const models = [
+      "minimax/Abab7.5-chat",
+      "minimax/Abab7-Chat",
+      "azure/gpt-4o-mini",
+      "gpt-4o-mini",
+    ];
+
+    let lastError = "";
+    for (const model of models) {
+      try {
         const response = await fetch(`${LITELLM_BASE_URL}/chat/completions`, {
           method: "POST",
           headers: {
@@ -48,21 +58,24 @@ export async function POST(request: Request) {
             Authorization: `Bearer ${LITELLM_API_KEY}`,
           },
           body: JSON.stringify({
-        model: "minimax/Abab7.5-chat",
+            model,
             messages: allMessages,
             max_tokens: 500,
           }),
         });
 
-    if (!response.ok) {
-      const error = await response.text();
-      return NextResponse.json({ error: error }, { status: response.status });
-    }
-
+        if (response.ok) {
           const data = await response.json();
           const reply = data.choices?.[0]?.message?.content || "Sorry, I couldn't get a response.";
-
           return NextResponse.json({ reply });
+        }
+        lastError = await response.text();
+      } catch (e) {
+        lastError = String(e);
+      }
+    }
+
+    return NextResponse.json({ error: "No models available: " + lastError }, { status: 500 });
   } catch (error) {
     console.error(error);
     return NextResponse.json({ error: String(error) }, { status: 500 });