Context Window Visualizer

Visualize text depth and find the "Needle in a Haystack" performance zones.

Input Text & Needle

Critical Information Depth: 50%

Est. Tokens0

Recall Prob.70.0%

Performance Heatmap

Start (0%)Middle (50%)End (100%)

Golden Zone

Lost in the Middle

Recency Zone

Needle: 70% Recall

Pro Tip: Models are best at retrieving info from the very beginning and the very end of the context. Placing critical instructions in the Middle (40-60% depth) often results in retrieval failure (the "Needle in a Haystack" problem).