langchain-openai: 0.1.21

chat_models

chat_models.azure.AzureChatOpenAI	Azure OpenAI chat model integration.
chat_models.base.BaseChatOpenAI	Fields:
chat_models.base.ChatOpenAI	OpenAI chat model integration.
chat_models.base.OpenAIRefusalError	Error raised when OpenAI Structured Outputs API returns a refusal.

embeddings

embeddings.azure.AzureOpenAIEmbeddings	AzureOpenAI embedding model integration.
embeddings.base.OpenAIEmbeddings	OpenAI embedding model integration.

llms

llms.azure.AzureOpenAI	Azure-specific OpenAI large language models.
llms.base.BaseOpenAI	Base OpenAI large language model class.
llms.base.OpenAI	OpenAI completion model integration.