# ChatGPT: Sol, Terra & Luna
OpenAI split ChatGPT into three models: Sol, Terra, and Luna. Learn which one to use, how to run them in ChatGPT Work, and the tricks that keep your bill low.
- Type: Tutorial
- Category: Business Strategy
- Access: free, no account needed
HTML version: https://websitespa.net/tutorials/chatgpt-sol-terra-luna