What is Context Window?
The maximum amount of text, measured in tokens, a model can consider at once.
Formal Definition
The context window is the maximum number of tokens a model can process in a single request, spanning its instructions, the supplied data, and its own output. Anything beyond the limit must be dropped or summarized. The window size determines how much market data, news, and portfolio history AI Stock Challenge can hand a model for each daily decision.
In Simple Terms
It is how much an AI can hold in its head at one time. A bigger window means it can read more market data, news, and past trades before deciding, instead of forgetting the earlier parts.
Example
To fit within a model's context window, the benchmark trims and formats the day's news so the most relevant items reach the model alongside its holdings and recent trades.