diff --git a/src/models.json b/src/models.json
index 6380194..88a325b 100644
--- a/src/models.json
+++ b/src/models.json
@@ -591,6 +591,72 @@
       "parallel_tool_calls": true
     }
   },
+  {
+    "id": "gpt-5.4-none",
+    "handle": "openai/gpt-5.4",
+    "label": "GPT-5.4",
+    "description": "OpenAI's most capable model (no reasoning)",
+    "updateArgs": {
+      "reasoning_effort": "none",
+      "verbosity": "medium",
+      "context_window": 1050000,
+      "max_output_tokens": 128000,
+      "parallel_tool_calls": true
+    }
+  },
+  {
+    "id": "gpt-5.4-low",
+    "handle": "openai/gpt-5.4",
+    "label": "GPT-5.4",
+    "description": "OpenAI's most capable model (low reasoning)",
+    "updateArgs": {
+      "reasoning_effort": "low",
+      "verbosity": "medium",
+      "context_window": 1050000,
+      "max_output_tokens": 128000,
+      "parallel_tool_calls": true
+    }
+  },
+  {
+    "id": "gpt-5.4-medium",
+    "handle": "openai/gpt-5.4",
+    "label": "GPT-5.4",
+    "description": "OpenAI's most capable model (med reasoning)",
+    "updateArgs": {
+      "reasoning_effort": "medium",
+      "verbosity": "medium",
+      "context_window": 1050000,
+      "max_output_tokens": 128000,
+      "parallel_tool_calls": true
+    }
+  },
+  {
+    "id": "gpt-5.4-high",
+    "handle": "openai/gpt-5.4",
+    "label": "GPT-5.4",
+    "description": "OpenAI's most capable model (high reasoning)",
+    "isFeatured": true,
+    "updateArgs": {
+      "reasoning_effort": "high",
+      "verbosity": "medium",
+      "context_window": 1050000,
+      "max_output_tokens": 128000,
+      "parallel_tool_calls": true
+    }
+  },
+  {
+    "id": "gpt-5.4-xhigh",
+    "handle": "openai/gpt-5.4",
+    "label": "GPT-5.4",
+    "description": "OpenAI's most capable model (max reasoning)",
+    "updateArgs": {
+      "reasoning_effort": "xhigh",
+      "verbosity": "medium",
+      "context_window": 1050000,
+      "max_output_tokens": 128000,
+      "parallel_tool_calls": true
+    }
+  },
   {
     "id": "gpt-5.3-codex-none",
     "handle": "openai/gpt-5.3-codex",