Add gpt-5-codex to OpenRouter cost map

Author: huangyafei

litellm/model_prices_and_context_window_backup.json

@@ -16857,6 +16857,25 @@
         "supports_reasoning": true,
         "supports_tool_choice": true
     },
+    "openrouter/openai/gpt-5-codex": {
+        "cache_read_input_token_cost": 1.25e-07,
+        "input_cost_per_token": 1.25e-06,
+        "litellm_provider": "openrouter",
+        "max_input_tokens": 400000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1e-05,
+        "supported_modalities": [
+            "text",
+            "image"
+        ],
+        "supported_output_modalities": [
+            "text"
+        ],
+        "supports_reasoning": true,
+        "supports_tool_choice": true
+    },
     "openrouter/openai/gpt-5": {
         "cache_read_input_token_cost": 1.25e-07,
         "input_cost_per_token": 1.25e-06,

model_prices_and_context_window.json

@@ -16857,6 +16857,25 @@
         "supports_reasoning": true,
         "supports_tool_choice": true
     },
+    "openrouter/openai/gpt-5-codex": {
+        "cache_read_input_token_cost": 1.25e-07,
+        "input_cost_per_token": 1.25e-06,
+        "litellm_provider": "openrouter",
+        "max_input_tokens": 400000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1e-05,
+        "supported_modalities": [
+            "text",
+            "image"
+        ],
+        "supported_output_modalities": [
+            "text"
+        ],
+        "supports_reasoning": true,
+        "supports_tool_choice": true
+    },
     "openrouter/openai/gpt-5": {
         "cache_read_input_token_cost": 1.25e-07,
         "input_cost_per_token": 1.25e-06,