litellm/docs/supported.md

Generation/Completion/Chat Completion Models

OpenAI Chat Completion Models

Model Name	Function Call	Required OS Variables
gpt-3.5-turbo	completion('gpt-3.5-turbo', messages)	os.environ['OPENAI_API_KEY']
gpt-3.5-turbo-16k	completion('gpt-3.5-turbo-16k', messages)	os.environ['OPENAI_API_KEY']
gpt-3.5-turbo-16k-0613	completion('gpt-3.5-turbo-16k-0613', messages)	os.environ['OPENAI_API_KEY']
gpt-4	completion('gpt-4', messages)	os.environ['OPENAI_API_KEY']

Azure OpenAI Chat Completion Models

Model Name	Function Call	Required OS Variables
gpt-3.5-turbo	completion('gpt-3.5-turbo', messages, azure=True)	os.environ['AZURE_API_KEY'], os.environ['AZURE_API_BASE'], os.environ['AZURE_API_VERSION']
gpt-4	completion('gpt-4', messages, azure=True)	os.environ['AZURE_API_KEY'], os.environ['AZURE_API_BASE'], os.environ['AZURE_API_VERSION']

OpenAI Text Completion Models

Model Name	Function Call	Required OS Variables
text-davinci-003	completion('text-davinci-003', messages)	os.environ['OPENAI_API_KEY']

Cohere Models

Model Name	Function Call	Required OS Variables
command-nightly	completion('command-nightly', messages)	os.environ['COHERE_API_KEY']

Anthropic Models

Model Name	Function Call	Required OS Variables
claude-instant-1	completion('claude-instant-1', messages)	os.environ['ANTHROPIC_API_KEY']
claude-v2	completion('claude-v2', messages)	os.environ['ANTHROPIC_API_KEY']