# Middleware > langchain_openai → Middleware !!! note "Reference docs" This page contains **reference documentation** for OpenAI Middleware. See [the docs](https://docs.langchain.com/oss/python/langchain/middleware/built-in#openai) for conceptual guides, tutorials, and examples on using OpenAI Middleware. Provider-specific middleware for OpenAI models: | CLASS | DESCRIPTION | | --------------------------------------------------------------------------------------- | --------------------------------------------------------- | | [`OpenAIModerationMiddleware`](#langchain_openai.middleware.OpenAIModerationMiddleware) | Moderate agent traffic using OpenAI's moderation endpoint | ## Classes - [`OpenAIEmbeddings`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings) - [`AzureOpenAIEmbeddings`](https://reference.langchain.com/python/langchain-openai/embeddings/azure/AzureOpenAIEmbeddings) - [`OpenAIModerationError`](https://reference.langchain.com/python/langchain-openai/middleware/openai_moderation/OpenAIModerationError) - [`OpenAIModerationMiddleware`](https://reference.langchain.com/python/langchain-openai/middleware/openai_moderation/OpenAIModerationMiddleware) - [`BaseOpenAI`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI) - [`OpenAI`](https://reference.langchain.com/python/langchain-openai/llms/base/OpenAI) - [`AzureOpenAI`](https://reference.langchain.com/python/langchain-openai/llms/azure/AzureOpenAI) - [`OpenAIContextOverflowError`](https://reference.langchain.com/python/langchain-openai/chat_models/base/OpenAIContextOverflowError) - [`OpenAIAPIContextOverflowError`](https://reference.langchain.com/python/langchain-openai/chat_models/base/OpenAIAPIContextOverflowError) - [`BaseChatOpenAI`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI) - [`ChatOpenAI`](https://reference.langchain.com/python/langchain-openai/chat_models/base/ChatOpenAI) - [`OpenAIRefusalError`](https://reference.langchain.com/python/langchain-openai/chat_models/base/OpenAIRefusalError) - [`StreamChunkTimeoutError`](https://reference.langchain.com/python/langchain-openai/chat_models/_client_utils/StreamChunkTimeoutError) - [`AzureChatOpenAI`](https://reference.langchain.com/python/langchain-openai/chat_models/azure/AzureChatOpenAI) ## Functions - [`decode_jwt_claims()`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/decode_jwt_claims) - [`login_chatgpt()`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/login_chatgpt) - [`login_chatgpt_device()`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/login_chatgpt_device) - [`custom_tool()`](https://reference.langchain.com/python/langchain-openai/tools/custom_tool/custom_tool) ## Modules - [`langchain_openai`](https://reference.langchain.com/python/langchain-openai/langchain_openai) - [`chatgpt_oauth`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth) - [`embeddings`](https://reference.langchain.com/python/langchain-openai/embeddings) - [`base`](https://reference.langchain.com/python/langchain-openai/embeddings/base) - [`azure`](https://reference.langchain.com/python/langchain-openai/embeddings/azure) - [`tools`](https://reference.langchain.com/python/langchain-openai/tools) - [`custom_tool`](https://reference.langchain.com/python/langchain-openai/tools/custom_tool) - [`middleware`](https://reference.langchain.com/python/langchain-openai/middleware) - [`openai_moderation`](https://reference.langchain.com/python/langchain-openai/middleware/openai_moderation) - [`llms`](https://reference.langchain.com/python/langchain-openai/llms) - [`base`](https://reference.langchain.com/python/langchain-openai/llms/base) - [`azure`](https://reference.langchain.com/python/langchain-openai/llms/azure) - [`data`](https://reference.langchain.com/python/langchain-openai/data) - [`chat_models`](https://reference.langchain.com/python/langchain-openai/chat_models) - [`base`](https://reference.langchain.com/python/langchain-openai/chat_models/base) - [`codex`](https://reference.langchain.com/python/langchain-openai/chat_models/codex) - [`azure`](https://reference.langchain.com/python/langchain-openai/chat_models/azure) - [`output_parsers`](https://reference.langchain.com/python/langchain-openai/output_parsers) - [`tools`](https://reference.langchain.com/python/langchain-openai/output_parsers/tools) ## Constants - [`logger`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/logger) - [`CHATGPT_CLIENT_ID`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/CHATGPT_CLIENT_ID) - [`CHATGPT_AUTHORIZE_URL`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/CHATGPT_AUTHORIZE_URL) - [`CHATGPT_TOKEN_URL`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/CHATGPT_TOKEN_URL) - [`CHATGPT_DEVICE_CODE_URL`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/CHATGPT_DEVICE_CODE_URL) - [`CHATGPT_DEVICE_TOKEN_URL`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/CHATGPT_DEVICE_TOKEN_URL) - [`CHATGPT_DEVICE_REDIRECT_URI`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/CHATGPT_DEVICE_REDIRECT_URI) - [`CHATGPT_AUTH_CLAIMS_NAMESPACE`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/CHATGPT_AUTH_CLAIMS_NAMESPACE) - [`DEFAULT_REDIRECT_HOST`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/DEFAULT_REDIRECT_HOST) - [`DEFAULT_REDIRECT_PORT`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/DEFAULT_REDIRECT_PORT) - [`DEFAULT_REDIRECT_PATH`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/DEFAULT_REDIRECT_PATH) - [`DEFAULT_SCOPE`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/DEFAULT_SCOPE) - [`DEFAULT_REFRESH_SKEW`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/DEFAULT_REFRESH_SKEW) - [`DEFAULT_STORE_PATH`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/DEFAULT_STORE_PATH) - [`access_token`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/_ChatGPTToken/access_token) - [`refresh_token`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/_ChatGPTToken/refresh_token) - [`expires_at`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/_ChatGPTToken/expires_at) - [`account_id`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/_ChatGPTToken/account_id) - [`plan_type`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/_ChatGPTToken/plan_type) - [`user_id`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/_ChatGPTToken/user_id) - [`id_token`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/_ChatGPTToken/id_token) - [`path`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/_FileChatGPTOAuthTokenProvider/path) - [`client_id`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/_FileChatGPTOAuthTokenProvider/client_id) - [`token_url`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/_FileChatGPTOAuthTokenProvider/token_url) - [`refresh_skew`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/_FileChatGPTOAuthTokenProvider/refresh_skew) - [`timeout`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/_FileChatGPTOAuthTokenProvider/timeout) - [`server_result`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/_CallbackHandler/server_result) - [`callback_path`](https://reference.langchain.com/python/langchain-openai/chatgpt_oauth/_CallbackHandler/callback_path) - [`logger`](https://reference.langchain.com/python/langchain-openai/embeddings/base/logger) - [`MAX_TOKENS_PER_REQUEST`](https://reference.langchain.com/python/langchain-openai/embeddings/base/MAX_TOKENS_PER_REQUEST) - [`client`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/client) - [`async_client`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/async_client) - [`model`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/model) - [`dimensions`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/dimensions) - [`deployment`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/deployment) - [`openai_api_version`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/openai_api_version) - [`openai_api_base`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/openai_api_base) - [`openai_api_type`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/openai_api_type) - [`openai_proxy`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/openai_proxy) - [`embedding_ctx_length`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/embedding_ctx_length) - [`openai_api_key`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/openai_api_key) - [`openai_organization`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/openai_organization) - [`allowed_special`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/allowed_special) - [`disallowed_special`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/disallowed_special) - [`chunk_size`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/chunk_size) - [`max_retries`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/max_retries) - [`request_timeout`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/request_timeout) - [`headers`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/headers) - [`tiktoken_enabled`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/tiktoken_enabled) - [`tiktoken_model_name`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/tiktoken_model_name) - [`show_progress_bar`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/show_progress_bar) - [`model_kwargs`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/model_kwargs) - [`skip_empty`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/skip_empty) - [`default_headers`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/default_headers) - [`default_query`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/default_query) - [`retry_min_seconds`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/retry_min_seconds) - [`retry_max_seconds`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/retry_max_seconds) - [`http_client`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/http_client) - [`http_async_client`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/http_async_client) - [`check_embedding_ctx_length`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/check_embedding_ctx_length) - [`model_config`](https://reference.langchain.com/python/langchain-openai/embeddings/base/OpenAIEmbeddings/model_config) - [`azure_endpoint`](https://reference.langchain.com/python/langchain-openai/embeddings/azure/AzureOpenAIEmbeddings/azure_endpoint) - [`deployment`](https://reference.langchain.com/python/langchain-openai/embeddings/azure/AzureOpenAIEmbeddings/deployment) - [`openai_api_key`](https://reference.langchain.com/python/langchain-openai/embeddings/azure/AzureOpenAIEmbeddings/openai_api_key) - [`openai_api_version`](https://reference.langchain.com/python/langchain-openai/embeddings/azure/AzureOpenAIEmbeddings/openai_api_version) - [`azure_ad_token`](https://reference.langchain.com/python/langchain-openai/embeddings/azure/AzureOpenAIEmbeddings/azure_ad_token) - [`azure_ad_token_provider`](https://reference.langchain.com/python/langchain-openai/embeddings/azure/AzureOpenAIEmbeddings/azure_ad_token_provider) - [`azure_ad_async_token_provider`](https://reference.langchain.com/python/langchain-openai/embeddings/azure/AzureOpenAIEmbeddings/azure_ad_async_token_provider) - [`openai_api_type`](https://reference.langchain.com/python/langchain-openai/embeddings/azure/AzureOpenAIEmbeddings/openai_api_type) - [`validate_base_url`](https://reference.langchain.com/python/langchain-openai/embeddings/azure/AzureOpenAIEmbeddings/validate_base_url) - [`chunk_size`](https://reference.langchain.com/python/langchain-openai/embeddings/azure/AzureOpenAIEmbeddings/chunk_size) - [`ViolationStage`](https://reference.langchain.com/python/langchain-openai/middleware/openai_moderation/ViolationStage) - [`DEFAULT_VIOLATION_TEMPLATE`](https://reference.langchain.com/python/langchain-openai/middleware/openai_moderation/DEFAULT_VIOLATION_TEMPLATE) - [`content`](https://reference.langchain.com/python/langchain-openai/middleware/openai_moderation/OpenAIModerationError/content) - [`stage`](https://reference.langchain.com/python/langchain-openai/middleware/openai_moderation/OpenAIModerationError/stage) - [`result`](https://reference.langchain.com/python/langchain-openai/middleware/openai_moderation/OpenAIModerationError/result) - [`model`](https://reference.langchain.com/python/langchain-openai/middleware/openai_moderation/OpenAIModerationMiddleware/model) - [`check_input`](https://reference.langchain.com/python/langchain-openai/middleware/openai_moderation/OpenAIModerationMiddleware/check_input) - [`check_output`](https://reference.langchain.com/python/langchain-openai/middleware/openai_moderation/OpenAIModerationMiddleware/check_output) - [`check_tool_results`](https://reference.langchain.com/python/langchain-openai/middleware/openai_moderation/OpenAIModerationMiddleware/check_tool_results) - [`exit_behavior`](https://reference.langchain.com/python/langchain-openai/middleware/openai_moderation/OpenAIModerationMiddleware/exit_behavior) - [`violation_message`](https://reference.langchain.com/python/langchain-openai/middleware/openai_moderation/OpenAIModerationMiddleware/violation_message) - [`logger`](https://reference.langchain.com/python/langchain-openai/llms/base/logger) - [`client`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/client) - [`async_client`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/async_client) - [`model_name`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/model_name) - [`temperature`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/temperature) - [`max_tokens`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/max_tokens) - [`top_p`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/top_p) - [`frequency_penalty`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/frequency_penalty) - [`presence_penalty`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/presence_penalty) - [`n`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/n) - [`best_of`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/best_of) - [`model_kwargs`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/model_kwargs) - [`openai_api_key`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/openai_api_key) - [`openai_api_base`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/openai_api_base) - [`openai_organization`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/openai_organization) - [`openai_proxy`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/openai_proxy) - [`batch_size`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/batch_size) - [`request_timeout`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/request_timeout) - [`logit_bias`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/logit_bias) - [`max_retries`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/max_retries) - [`seed`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/seed) - [`logprobs`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/logprobs) - [`streaming`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/streaming) - [`allowed_special`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/allowed_special) - [`disallowed_special`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/disallowed_special) - [`tiktoken_model_name`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/tiktoken_model_name) - [`default_headers`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/default_headers) - [`default_query`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/default_query) - [`http_client`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/http_client) - [`http_async_client`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/http_async_client) - [`extra_body`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/extra_body) - [`model_config`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/model_config) - [`max_context_size`](https://reference.langchain.com/python/langchain-openai/llms/base/BaseOpenAI/max_context_size) - [`lc_secrets`](https://reference.langchain.com/python/langchain-openai/llms/base/OpenAI/lc_secrets) - [`lc_attributes`](https://reference.langchain.com/python/langchain-openai/llms/base/OpenAI/lc_attributes) - [`logger`](https://reference.langchain.com/python/langchain-openai/llms/azure/logger) - [`azure_endpoint`](https://reference.langchain.com/python/langchain-openai/llms/azure/AzureOpenAI/azure_endpoint) - [`deployment_name`](https://reference.langchain.com/python/langchain-openai/llms/azure/AzureOpenAI/deployment_name) - [`openai_api_version`](https://reference.langchain.com/python/langchain-openai/llms/azure/AzureOpenAI/openai_api_version) - [`openai_api_key`](https://reference.langchain.com/python/langchain-openai/llms/azure/AzureOpenAI/openai_api_key) - [`azure_ad_token`](https://reference.langchain.com/python/langchain-openai/llms/azure/AzureOpenAI/azure_ad_token) - [`azure_ad_token_provider`](https://reference.langchain.com/python/langchain-openai/llms/azure/AzureOpenAI/azure_ad_token_provider) - [`azure_ad_async_token_provider`](https://reference.langchain.com/python/langchain-openai/llms/azure/AzureOpenAI/azure_ad_async_token_provider) - [`openai_api_type`](https://reference.langchain.com/python/langchain-openai/llms/azure/AzureOpenAI/openai_api_type) - [`validate_base_url`](https://reference.langchain.com/python/langchain-openai/llms/azure/AzureOpenAI/validate_base_url) - [`lc_secrets`](https://reference.langchain.com/python/langchain-openai/llms/azure/AzureOpenAI/lc_secrets) - [`lc_attributes`](https://reference.langchain.com/python/langchain-openai/llms/azure/AzureOpenAI/lc_attributes) - [`logger`](https://reference.langchain.com/python/langchain-openai/chat_models/base/logger) - [`global_ssl_context`](https://reference.langchain.com/python/langchain-openai/chat_models/base/global_ssl_context) - [`WellKnownTools`](https://reference.langchain.com/python/langchain-openai/chat_models/base/WellKnownTools) - [`client`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/client) - [`async_client`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/async_client) - [`root_client`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/root_client) - [`root_async_client`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/root_async_client) - [`model_name`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/model_name) - [`temperature`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/temperature) - [`model_kwargs`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/model_kwargs) - [`openai_api_key`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/openai_api_key) - [`openai_api_base`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/openai_api_base) - [`openai_organization`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/openai_organization) - [`openai_proxy`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/openai_proxy) - [`request_timeout`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/request_timeout) - [`stream_usage`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/stream_usage) - [`max_retries`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/max_retries) - [`presence_penalty`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/presence_penalty) - [`frequency_penalty`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/frequency_penalty) - [`seed`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/seed) - [`logprobs`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/logprobs) - [`top_logprobs`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/top_logprobs) - [`logit_bias`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/logit_bias) - [`streaming`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/streaming) - [`n`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/n) - [`top_p`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/top_p) - [`max_tokens`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/max_tokens) - [`reasoning_effort`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/reasoning_effort) - [`reasoning`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/reasoning) - [`verbosity`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/verbosity) - [`tiktoken_model_name`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/tiktoken_model_name) - [`default_headers`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/default_headers) - [`default_query`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/default_query) - [`http_client`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/http_client) - [`http_async_client`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/http_async_client) - [`http_socket_options`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/http_socket_options) - [`stream_chunk_timeout`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/stream_chunk_timeout) - [`stop`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/stop) - [`extra_body`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/extra_body) - [`include_response_headers`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/include_response_headers) - [`disabled_params`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/disabled_params) - [`context_management`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/context_management) - [`include`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/include) - [`prompt_cache_options`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/prompt_cache_options) - [`service_tier`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/service_tier) - [`store`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/store) - [`truncation`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/truncation) - [`use_previous_response_id`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/use_previous_response_id) - [`use_responses_api`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/use_responses_api) - [`output_version`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/output_version) - [`model_config`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/model_config) - [`model`](https://reference.langchain.com/python/langchain-openai/chat_models/base/BaseChatOpenAI/model) - [`max_tokens`](https://reference.langchain.com/python/langchain-openai/chat_models/base/ChatOpenAI/max_tokens) - [`lc_secrets`](https://reference.langchain.com/python/langchain-openai/chat_models/base/ChatOpenAI/lc_secrets) - [`lc_attributes`](https://reference.langchain.com/python/langchain-openai/chat_models/base/ChatOpenAI/lc_attributes) - [`logger`](https://reference.langchain.com/python/langchain-openai/chat_models/codex/logger) - [`CHATGPT_CODEX_BASE_URL`](https://reference.langchain.com/python/langchain-openai/chat_models/codex/CHATGPT_CODEX_BASE_URL) - [`ORIGINATOR_HEADER`](https://reference.langchain.com/python/langchain-openai/chat_models/codex/ORIGINATOR_HEADER) - [`ORIGINATOR_VALUE`](https://reference.langchain.com/python/langchain-openai/chat_models/codex/ORIGINATOR_VALUE) - [`ORIGINATOR_ENV_VAR`](https://reference.langchain.com/python/langchain-openai/chat_models/codex/ORIGINATOR_ENV_VAR) - [`ACCOUNT_ID_HEADER`](https://reference.langchain.com/python/langchain-openai/chat_models/codex/ACCOUNT_ID_HEADER) - [`EXPERIMENTAL_UNOFFICIAL_WARNING`](https://reference.langchain.com/python/langchain-openai/chat_models/codex/EXPERIMENTAL_UNOFFICIAL_WARNING) - [`DEFAULT_INSTRUCTIONS`](https://reference.langchain.com/python/langchain-openai/chat_models/codex/DEFAULT_INSTRUCTIONS) - [`token_provider`](https://reference.langchain.com/python/langchain-openai/chat_models/codex/_ChatOpenAICodex/token_provider) - [`originator`](https://reference.langchain.com/python/langchain-openai/chat_models/codex/_ChatOpenAICodex/originator) - [`instructions`](https://reference.langchain.com/python/langchain-openai/chat_models/codex/_ChatOpenAICodex/instructions) - [`logger`](https://reference.langchain.com/python/langchain-openai/chat_models/_client_utils/logger) - [`SocketOption`](https://reference.langchain.com/python/langchain-openai/chat_models/_client_utils/SocketOption) - [`T`](https://reference.langchain.com/python/langchain-openai/chat_models/_client_utils/T) - [`timeout_s`](https://reference.langchain.com/python/langchain-openai/chat_models/_client_utils/StreamChunkTimeoutError/timeout_s) - [`model_name`](https://reference.langchain.com/python/langchain-openai/chat_models/_client_utils/StreamChunkTimeoutError/model_name) - [`chunks_received`](https://reference.langchain.com/python/langchain-openai/chat_models/_client_utils/StreamChunkTimeoutError/chunks_received) - [`logger`](https://reference.langchain.com/python/langchain-openai/chat_models/azure/logger) - [`azure_endpoint`](https://reference.langchain.com/python/langchain-openai/chat_models/azure/AzureChatOpenAI/azure_endpoint) - [`deployment_name`](https://reference.langchain.com/python/langchain-openai/chat_models/azure/AzureChatOpenAI/deployment_name) - [`openai_api_version`](https://reference.langchain.com/python/langchain-openai/chat_models/azure/AzureChatOpenAI/openai_api_version) - [`openai_api_key`](https://reference.langchain.com/python/langchain-openai/chat_models/azure/AzureChatOpenAI/openai_api_key) - [`azure_ad_token`](https://reference.langchain.com/python/langchain-openai/chat_models/azure/AzureChatOpenAI/azure_ad_token) - [`azure_ad_token_provider`](https://reference.langchain.com/python/langchain-openai/chat_models/azure/AzureChatOpenAI/azure_ad_token_provider) - [`azure_ad_async_token_provider`](https://reference.langchain.com/python/langchain-openai/chat_models/azure/AzureChatOpenAI/azure_ad_async_token_provider) - [`model_version`](https://reference.langchain.com/python/langchain-openai/chat_models/azure/AzureChatOpenAI/model_version) - [`openai_api_type`](https://reference.langchain.com/python/langchain-openai/chat_models/azure/AzureChatOpenAI/openai_api_type) - [`validate_base_url`](https://reference.langchain.com/python/langchain-openai/chat_models/azure/AzureChatOpenAI/validate_base_url) - [`model_name`](https://reference.langchain.com/python/langchain-openai/chat_models/azure/AzureChatOpenAI/model_name) - [`disabled_params`](https://reference.langchain.com/python/langchain-openai/chat_models/azure/AzureChatOpenAI/disabled_params) - [`max_tokens`](https://reference.langchain.com/python/langchain-openai/chat_models/azure/AzureChatOpenAI/max_tokens) - [`lc_secrets`](https://reference.langchain.com/python/langchain-openai/chat_models/azure/AzureChatOpenAI/lc_secrets) - [`lc_attributes`](https://reference.langchain.com/python/langchain-openai/chat_models/azure/AzureChatOpenAI/lc_attributes)