From 62eee47618cc6549a484fc4096ab79ffa1a07b64 Mon Sep 17 00:00:00 2001
From: Peter Dave Hello <3691490+PeterDaveHello@users.noreply.github.com>
Date: Thu, 15 Jan 2026 03:49:40 +0800
Subject: [PATCH] Add support for OpenAI's gpt-5.2-codex (#19101)

Reference:
- https://openai.com/index/introducing-gpt-5-2-codex/
- https://platform.openai.com/docs/models/gpt-5.2-codex
---
 ...odel_prices_and_context_window_backup.json | 52 +++++++++++++++++++
 model_prices_and_context_window.json          | 52 +++++++++++++++++++
 2 files changed, 104 insertions(+)

diff --git a/litellm/model_prices_and_context_window_backup.json b/litellm/model_prices_and_context_window_backup.json
index 16d624cfa5..a130aefa5d 100644
--- a/litellm/model_prices_and_context_window_backup.json
+++ b/litellm/model_prices_and_context_window_backup.json
@@ -18099,6 +18099,39 @@
         "supports_tool_choice": true,
         "supports_vision": true
     },
+    "gpt-5.2-codex": {
+        "cache_read_input_token_cost": 1.75e-07,
+        "cache_read_input_token_cost_priority": 3.5e-07,
+        "input_cost_per_token": 1.75e-06,
+        "input_cost_per_token_priority": 3.5e-06,
+        "litellm_provider": "openai",
+        "max_input_tokens": 400000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "responses",
+        "output_cost_per_token": 1.4e-05,
+        "output_cost_per_token_priority": 2.8e-05,
+        "supported_endpoints": [
+            "/v1/responses"
+        ],
+        "supported_modalities": [
+            "text",
+            "image"
+        ],
+        "supported_output_modalities": [
+            "text"
+        ],
+        "supports_function_calling": true,
+        "supports_native_streaming": true,
+        "supports_parallel_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_system_messages": false,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
     "gpt-5-mini": {
         "cache_read_input_token_cost": 2.5e-08,
         "cache_read_input_token_cost_flex": 1.25e-08,
@@ -23266,6 +23299,25 @@
         "supports_reasoning": true,
         "supports_tool_choice": true
     },
+    "openrouter/openai/gpt-5.2-codex": {
+        "cache_read_input_token_cost": 1.75e-07,
+        "input_cost_per_token": 1.75e-06,
+        "litellm_provider": "openrouter",
+        "max_input_tokens": 400000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.4e-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,
diff --git a/model_prices_and_context_window.json b/model_prices_and_context_window.json
index 16d624cfa5..a130aefa5d 100644
--- a/model_prices_and_context_window.json
+++ b/model_prices_and_context_window.json
@@ -18099,6 +18099,39 @@
         "supports_tool_choice": true,
         "supports_vision": true
     },
+    "gpt-5.2-codex": {
+        "cache_read_input_token_cost": 1.75e-07,
+        "cache_read_input_token_cost_priority": 3.5e-07,
+        "input_cost_per_token": 1.75e-06,
+        "input_cost_per_token_priority": 3.5e-06,
+        "litellm_provider": "openai",
+        "max_input_tokens": 400000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "responses",
+        "output_cost_per_token": 1.4e-05,
+        "output_cost_per_token_priority": 2.8e-05,
+        "supported_endpoints": [
+            "/v1/responses"
+        ],
+        "supported_modalities": [
+            "text",
+            "image"
+        ],
+        "supported_output_modalities": [
+            "text"
+        ],
+        "supports_function_calling": true,
+        "supports_native_streaming": true,
+        "supports_parallel_function_calling": true,
+        "supports_pdf_input": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_system_messages": false,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
     "gpt-5-mini": {
         "cache_read_input_token_cost": 2.5e-08,
         "cache_read_input_token_cost_flex": 1.25e-08,
@@ -23266,6 +23299,25 @@
         "supports_reasoning": true,
         "supports_tool_choice": true
     },
+    "openrouter/openai/gpt-5.2-codex": {
+        "cache_read_input_token_cost": 1.75e-07,
+        "input_cost_per_token": 1.75e-06,
+        "litellm_provider": "openrouter",
+        "max_input_tokens": 400000,
+        "max_output_tokens": 128000,
+        "max_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.4e-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,