> Spend caps, alerts, and auto-downgrade. # Budgets Budgets let you set spending limits at multiple scopes and enforce them automatically. Modelux tracks per-request cost across every provider and applies your budget rules in real time. ## Scopes A budget applies to one of: - **Organization** — total spend across all projects - **Project** — spend on a specific project - **End-user** — spend per end-user tag - **Tag** — spend scoped by any custom tag key ## Caps Each budget has: - **Monthly cap** — reset on the 1st of each month, or a custom reset schedule - **Soft cap** — alert threshold (defaults to 80%) - **Hard cap** — enforcement action when reached ## Actions When a hard cap is hit, Modelux can: - **Alert only** — send an email / webhook; continue serving - **Auto-downgrade** — automatically route to a cheaper model (configured per budget) - **Block** — return `402 Payment Required` with an upgrade prompt ## Alerts Every budget supports multiple alert thresholds with configurable actions. Alerts fire via: - Email to designated recipients - Webhook (Slack-compatible format supported) - Dashboard banner ## Forecasting Modelux shows a projected end-of-month spend based on current rate, plus period-over-period comparisons so you can catch cost regressions quickly.