openai: add page (#9909)

pages/common/openai.md

@@ -0,0 +1,20 @@
+# openai
+
+> CLI tool providing access to the OpenAI API.
+> More information: <https://github.com/openai/openai-python>.
+
+- 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 DALL·E API:
+
+`openai api image.create --prompt {{"two dogs playing chess, cartoon"}} --num-images {{1}}`