AI Context Window Planner
Allocate your model's context window budget across system prompt, documents, history, and reserved output tokens — see if everything fits.
How to use AI Context Window Planner
- Select a model to see its context window size.
- Enter token counts for each component (system prompt, docs, history).
- View the budget allocation and remaining capacity.
What is AI Context Window Planner?
Every AI model has a maximum context window. This planner helps you allocate tokens across system prompts, uploaded documents, conversation history, and reserved output space to avoid truncation and unexpected costs.
Visualize how your token budget is spent and optimize for the most important content in each request.
FAQ
- What happens if I exceed the context window?
- The model truncates or ignores earlier content. This planner helps you stay within limits.
- Should I reserve output tokens?
- Yes, always reserve space for the model's response. A common rule is 20-30% of the context window.
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