on this github site, they have detailed manual in the form of a cook book.

API usage
how to handle rate limits
how to count tokens with tiktoken
how to stream completions

GPT-3
how to work with large language models
techniques to improve reliability
how to use a multi-step prompt to write unit tests
text writing examples
text explanation examples
text editing examples
code writing examples
code explanation examples
code editing examples

Embeddings
text comparison examples
how to get embeddings
questions answering using embeddings
semantic search using embeddings
recommendations using embeddings
clustering embeddings
visualizing embeddings in 2D and 3D
embedding long texts

Fine-tuning GPT-3
best practices for fine-tuning GPT-3 to classify text
fine-tuned classification

DALL-E
how to generate and edit images with DALL-E

Azure OpenAI (Alternative API from Microsoft Azure)