Compression

Explore how cutting old tool results changes a coding session’s context and token costs.

Choose a session

Include the control’s cold start

One example per task. Savings use recorded tokens at list prices, including cache writes and output; these selected examples are not an average or a guarantee.

Explore a call

Context window size over calls

Prompt tokens of every model call. Dashed line: a cut. Hollow tick: a cut refused.

Cumulative cost

At list prices: input, cache reads, cache writes, output.

Cost by type

Context windows at the selected call

Solid: results the model can read. Hollow: placeholders thinker left.

Events

Select an event or click a chart to inspect that call.

Side by side

Every model call as a table