Built-in cost visibility for OpenRouter usage in Metrics

We added a cost field to Metrics for OpenRouter-backed activity. This provides a reliable, standardized view of model spend without manual spreadsheets or custom aggregations, improving financial governance across environments.

Details

Capture per-run and aggregate cost to support budget tracking, reporting, and chargeback
Enables cost dashboards and alerts for proactive spend management
No configuration changes required; cost appears automatically wherever Metrics are used

Who this is for: Platform and FinOps teams managing LLM spend across providers.