diff --git a/llm_pricing.json b/llm_pricing.json
index 920e70f..49d75bf 100644
--- a/llm_pricing.json
+++ b/llm_pricing.json
@@ -1243,11 +1243,27 @@
       }
     ]
   },
+  {
+    "name": "DeepSeek Chat / Reasoner",
+    "provider": "DeepSeek",
+    "description": "DeepSeek compatibility aliases for V4 Flash (deepseek-chat, deepseek-reasoner)",
+    "match_pattern": "(?i)deepseek-(?:chat|reasoner)$",
+    "tiers": [
+      {
+        "name": "Default",
+        "prices": {
+          "input": 1.4e-07,
+          "output": 2.8e-07,
+          "cache_read_input_tokens": 2.8e-09
+        }
+      }
+    ]
+  },
   {
     "name": "DeepSeek V3",
     "provider": "DeepSeek",
-    "description": "DeepSeek V3 (deepseek-chat)",
-    "match_pattern": "(?i)deepseek-(?:v3|chat)(?:$|-)",
+    "description": "DeepSeek V3",
+    "match_pattern": "(?i)deepseek-v3(?:$|-)",
     "tiers": [
       {
         "name": "Default",
@@ -1262,8 +1278,8 @@
   {
     "name": "DeepSeek R1",
     "provider": "DeepSeek",
-    "description": "DeepSeek R1 reasoning model (deepseek-reasoner)",
-    "match_pattern": "(?i)deepseek-(?:r1|reasoner)(?:-\\d[\\d-]*)?$",
+    "description": "DeepSeek R1 reasoning model",
+    "match_pattern": "(?i)deepseek-r1(?:-\\d[\\d-]*)?$",
     "tiers": [
       {
         "name": "Default",