> ## Documentation Index > Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # KeyBudgetResetInterval UTC window the spend is counted over (weeks start Monday); null for a lifetime budget that never resets. ## Example Usage ```go theme={null} import ( "github.com/OpenRouterTeam/go-sdk/models/components" ) value := components.KeyBudgetResetIntervalDaily // Open enum: custom values can be created with a direct type cast custom := components.KeyBudgetResetInterval("custom_value") ``` ## Values | Name | Value | | - | - | | `KeyBudgetResetIntervalDaily` | daily | | `KeyBudgetResetIntervalWeekly` | weekly | | `KeyBudgetResetIntervalMonthly` | monthly |