L068 · How AI thinks · 2 min
Context window vs memory
The context window is what a chatbot sees in this chat, while memory features save some facts about you for future chats.
01 · The idea
Inside one conversation, the chatbot sees your messages through its context window. Close the chat and start a new one, and by default it starts blank.
Many assistants now offer memory. They save short notes about you, like your job, your language or your preferences, and quietly add them to new chats. Some can also look back through your past conversations.
This is handy, since you stop repeating yourself. It also means the tool keeps personal details over time. A wrong or old note can colour every answer too.
Check your settings. Most tools let you see what is remembered, edit or delete single notes, switch memory off, or use a temporary chat that is not saved. Look there before you share anything sensitive.
02 · Think of it like this
The context window is the notepad on the desk during one meeting. Memory is the small card of notes about you the assistant keeps in a drawer for next time.
03 · Do it now
04 · Quick check
Words in this lesson
See also
L032How AI thinks · 2 min
Why AI forgets in long chats
Long chats slowly get worse because the model has to juggle more and more text, and older details get crowded out.
L153AI at work · 2 min
Projects and memory: AI that keeps your context
Projects and memory save you from explaining yourself again in every new chat, as long as you stay in charge of what is kept.
L006How AI thinks · 2 min
The context window: AI's short-term memory
A chatbot can only see a limited amount of text at once, and in a very long chat the oldest parts can slip away.
L004How AI thinks · 1 min
Tokens: how AI reads
AI does not read words; it reads tokens, small chunks of text that are often parts of words.