Free tool
Stop token overflow.
Measure your text length in tokens and see exactly how much room you have left in the context window of your favorite LLM.
Calculator component to be implemented in @/components/ContextWindowCalculator
01
Context
Understanding context windows
The limit on how much a model can 'remember' at once.
What is a context window?
The context window is the maximum number of tokens a model can process in a single request. If your prompt exceeds this, the model will either error out or truncate the beginning of the conversation.
The Token Gap
A common mistake is thinking in characters or words. Tokens are chunks of characters, and the exact ratio varies by model.