What does 'context window' refer to in the context of Claude AI models?
Select an answer to reveal the explanation.
Short Explanation
The context window is like the whiteboard a model can see — everything currently written on it (your input, conversation history, documents) plus what it writes back (the output) must fit on that board.
Full Explanation
A context window defines the total token capacity for a single API call, encompassing all input tokens (system prompt, conversation history, user messages, documents) plus the output tokens generated. Claude's context windows are measured in tokens, where roughly 4 characters equals 1 token for English text. Option A confuses context window with UI concepts. Option C is wrong because Claude does NOT have persistent memory across sessions by default — each API call is stateless. Option D describes request timeouts, which are separate infrastructure concerns unrelated to context windows.