diff --git a/packages/proxy/schema/index.ts b/packages/proxy/schema/index.ts
index 5f849b09..2b178d09 100644
--- a/packages/proxy/schema/index.ts
+++ b/packages/proxy/schema/index.ts
@@ -621,6 +621,10 @@ export const AvailableEndpointTypes: { [name: string]: ModelEndpointType[] } = {
   "claude-opus-4-8": ["anthropic"],
   "Qwen/Qwen3.7-Max": ["together"],
   "grok-build-0.1": ["xAI"],
+  "writer.palmyra-x4-v1:0": ["bedrock"],
+  "writer.palmyra-x5-v1:0": ["bedrock"],
+  "us.writer.palmyra-x4-v1:0": ["bedrock"],
+  "us.writer.palmyra-x5-v1:0": ["bedrock"],
   "moonshotai.kimi-k2.5": ["bedrock"],
   "qwen.qwen3-235b-a22b-2507-v1:0": ["bedrock"],
   "qwen.qwen3-coder-480b-a35b-v1:0": ["bedrock"],
diff --git a/packages/proxy/schema/model_list.json b/packages/proxy/schema/model_list.json
index af7420e9..e643f536 100644
--- a/packages/proxy/schema/model_list.json
+++ b/packages/proxy/schema/model_list.json
@@ -12150,5 +12150,55 @@
     "available_providers": [
       "bedrock"
     ]
+  },
+  "writer.palmyra-x4-v1:0": {
+    "format": "converse",
+    "flavor": "chat",
+    "input_cost_per_mil_tokens": 2.5,
+    "output_cost_per_mil_tokens": 10,
+    "displayName": "Palmyra X4",
+    "max_input_tokens": 128000,
+    "max_output_tokens": 8192,
+    "available_providers": [
+      "bedrock"
+    ]
+  },
+  "writer.palmyra-x5-v1:0": {
+    "format": "converse",
+    "flavor": "chat",
+    "input_cost_per_mil_tokens": 0.6,
+    "output_cost_per_mil_tokens": 6,
+    "displayName": "Palmyra X5",
+    "max_input_tokens": 128000,
+    "max_output_tokens": 8192,
+    "available_providers": [
+      "bedrock"
+    ]
+  },
+  "us.writer.palmyra-x4-v1:0": {
+    "format": "converse",
+    "flavor": "chat",
+    "input_cost_per_mil_tokens": 2.5,
+    "output_cost_per_mil_tokens": 10,
+    "displayName": "US Palmyra X4",
+    "parent": "writer.palmyra-x4-v1:0",
+    "max_input_tokens": 128000,
+    "max_output_tokens": 8192,
+    "available_providers": [
+      "bedrock"
+    ]
+  },
+  "us.writer.palmyra-x5-v1:0": {
+    "format": "converse",
+    "flavor": "chat",
+    "input_cost_per_mil_tokens": 0.6,
+    "output_cost_per_mil_tokens": 6,
+    "displayName": "US Palmyra X5",
+    "parent": "writer.palmyra-x5-v1:0",
+    "max_input_tokens": 128000,
+    "max_output_tokens": 8192,
+    "available_providers": [
+      "bedrock"
+    ]
   }
 }