# openai > CLI tool providing access to the OpenAI API. > More information: . - List models: `openai api models.list` - Create a completion: `openai api completions.create --model {{ada}} --prompt {{"Hello world"}}` - Create a chat completion: `openai api chat_completions.create --model {{gpt-3.5-turbo}} --message {{user "Hello world"}}` - Generate images via DALLĀ·E API: `openai api image.create --prompt {{"two dogs playing chess, cartoon"}} --num-images {{1}}`