diff --git a/app/services/modelTypes.ts b/app/services/modelTypes.ts
index bede18c..ec875eb 100644
--- a/app/services/modelTypes.ts
+++ b/app/services/modelTypes.ts
@@ -96,11 +96,21 @@ export async function listModelTypes(params: ModelTypeListParams = {}, opts: { s
   if (params.dir) {
     query.dir = params.dir;
   }
-  if (typeof params.limit === 'number') {
-    query.itemsPerPage = params.limit;
-  }
-  if (typeof params.offset === 'number') {
-    query.offset = params.offset;
+  const hasCategoryFilter = Boolean(params.category);
+  const effectiveLimit = typeof params.limit === 'number' ? params.limit : undefined;
+  const effectiveOffset = typeof params.offset === 'number' ? params.offset : 0;
+
+  if (hasCategoryFilter) {
+    // Fetch enough items to allow client-side category filtering + pagination.
+    query.itemsPerPage = Math.max(effectiveLimit ?? 200, 200);
+    query.offset = 0;
+  } else {
+    if (typeof params.limit === 'number') {
+      query.itemsPerPage = params.limit;
+    }
+    if (typeof params.offset === 'number') {
+      query.offset = params.offset;
+    }
   }
 
   const payload = await requestFetch<Record<string, any>>(ENDPOINT, createOptions({
@@ -116,22 +126,25 @@ export async function listModelTypes(params: ModelTypeListParams = {}, opts: { s
       : Array.isArray(payload?.items)
         ? payload.items
         : [];
-  const items = params.category
+  const filteredItems = params.category
     ? rawItems.filter((item: any) => item?.category === params.category)
     : rawItems;
   const total = params.category
-    ? items.length
+    ? filteredItems.length
     : typeof payload?.totalItems === 'number'
       ? payload.totalItems
       : Array.isArray(payload?.items)
         ? payload.items.length
         : rawItems.length;
+  const items = params.category && typeof effectiveLimit === 'number'
+    ? filteredItems.slice(effectiveOffset, effectiveOffset + effectiveLimit)
+    : filteredItems;
 
   return {
     items,
     total,
-    offset: params.offset ?? 0,
-    limit: typeof params.limit === 'number' ? params.limit : items.length,
+    offset: effectiveOffset,
+    limit: typeof effectiveLimit === 'number' ? effectiveLimit : items.length,
   } satisfies ModelTypeListResponse;
 }