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Add gpt-5.1-codex-max model pricing and configuration (#17541)

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Add support for OpenAI's gpt-5.1-codex-max model, their most intelligent
coding model optimized for long-horizon agentic coding tasks.

- 400k context window, 128k max output tokens
- $1.25/1M input, $10/1M output, $0.125/1M cached input
- Only available via /v1/responses endpoint
- Supports vision, function calling, reasoning, prompt caching
This commit is contained in:
Cesar Garcia
2025-12-05 17:46:14 -03:00
committed by GitHub
parent 1ea7803d39
commit 4eb9f8036f
3 changed files with 121 additions and 0 deletions
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60
litellm/model_prices_and_context_window_backup.json
View File

@@ -3316,6 +3316,36 @@
"supports_tool_choice": true,
"supports_vision": true
},
"azure/gpt-5.1-codex-max": {
"cache_read_input_token_cost": 1.25e-07,
"input_cost_per_token": 1.25e-06,
"litellm_provider": "azure",
"max_input_tokens": 400000,
"max_output_tokens": 128000,
"max_tokens": 128000,
"mode": "responses",
"output_cost_per_token": 1e-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
},
"azure/gpt-5.1-codex-mini": {
"cache_read_input_token_cost": 2.5e-08,
"input_cost_per_token": 2.5e-07,
@@ -16345,6 +16375,36 @@
"supports_tool_choice": true,
"supports_vision": true
},
"gpt-5.1-codex-max": {
"cache_read_input_token_cost": 1.25e-07,
"input_cost_per_token": 1.25e-06,
"litellm_provider": "openai",
"max_input_tokens": 400000,
"max_output_tokens": 128000,
"max_tokens": 128000,
"mode": "responses",
"output_cost_per_token": 1e-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-5.1-codex-mini": {
"cache_read_input_token_cost": 2.5e-08,
"cache_read_input_token_cost_priority": 4.5e-08,

60
model_prices_and_context_window.json
View File

@@ -3316,6 +3316,36 @@
"supports_tool_choice": true,
"supports_vision": true
},
"azure/gpt-5.1-codex-max": {
"cache_read_input_token_cost": 1.25e-07,
"input_cost_per_token": 1.25e-06,
"litellm_provider": "azure",
"max_input_tokens": 400000,
"max_output_tokens": 128000,
"max_tokens": 128000,
"mode": "responses",
"output_cost_per_token": 1e-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
},
"azure/gpt-5.1-codex-mini": {
"cache_read_input_token_cost": 2.5e-08,
"input_cost_per_token": 2.5e-07,
@@ -16345,6 +16375,36 @@
"supports_tool_choice": true,
"supports_vision": true
},
"gpt-5.1-codex-max": {
"cache_read_input_token_cost": 1.25e-07,
"input_cost_per_token": 1.25e-06,
"litellm_provider": "openai",
"max_input_tokens": 400000,
"max_output_tokens": 128000,
"max_tokens": 128000,
"mode": "responses",
"output_cost_per_token": 1e-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-5.1-codex-mini": {
"cache_read_input_token_cost": 2.5e-08,
"cache_read_input_token_cost_priority": 4.5e-08,

1
tests/test_litellm/llms/openai/test_gpt5_transformation.py
View File

@@ -216,6 +216,7 @@ def test_gpt5_1_model_detection(gpt5_config: OpenAIGPT5Config):
"""Test that GPT-5.1 models are correctly detected."""
assert gpt5_config.is_model_gpt_5_1_model("gpt-5.1")
assert gpt5_config.is_model_gpt_5_1_model("gpt-5.1-codex")
assert gpt5_config.is_model_gpt_5_1_model("gpt-5.1-codex-max")
assert gpt5_config.is_model_gpt_5_1_model("gpt-5.1-chat")
assert not gpt5_config.is_model_gpt_5_1_model("gpt-5")
assert not gpt5_config.is_model_gpt_5_1_model("gpt-5-mini")