diff --git a/internal/providers/configs/xai.json b/internal/providers/configs/xai.json
index d06a77f7d7b8cbb8dea884afaba9ffcda282dd53..7d03c433cd55f59cb2e95baa42368d79eaebbbc3 100644
--- a/internal/providers/configs/xai.json
+++ b/internal/providers/configs/xai.json
@@ -19,6 +19,30 @@
       "can_reason": true,
       "supports_attachments": false
     },
+    {
+      "id": "grok-4-1-fast-reasoning",
+      "name": "Grok 4.1 Fast Reasoning",
+      "cost_per_1m_in": 0.2,
+      "cost_per_1m_out": 0.5,
+      "cost_per_1m_in_cached": 0,
+      "cost_per_1m_out_cached": 0.05,
+      "context_window": 2000000,
+      "default_max_tokens": 200000,
+      "can_reason": true,
+      "supports_attachments": true
+    },
+    {
+      "id": "grok-4-1-fast-non-reasoning",
+      "name": "Grok 4.1 Fast Non-Reasoning",
+      "cost_per_1m_in": 0.2,
+      "cost_per_1m_out": 0.5,
+      "cost_per_1m_in_cached": 0,
+      "cost_per_1m_out_cached": 0.05,
+      "context_window": 2000000,
+      "default_max_tokens": 200000,
+      "can_reason": false,
+      "supports_attachments": true
+    },
     {
       "id": "grok-4",
       "name": "Grok 4",