When to Use Each Model
https://help.openai.com/en/articles/11165333-chatgpt-enterprise-models-limits
How memory works in OpenAI/ChatGPT
https://help.openai.com/en/articles/8590148-memory-faq
https://www.reddit.com/r/ChatGPT/comments/1co8qtr/how_is_latest_chatgpt_feature_memory_implemented/
TIP FOR SAVING MONEY WITH AUDIO TRANSCRIPTS:
https://www.reddit.com/r/OpenAI/comments/1ll44fj/scary_smart/