Claude Fable 5.1 & GPT-6 Astra packages are live

monitoring

Backend

Metrics, traces and alerts for a backend service — the four golden signals, SLOs and error budgets, cardinality control, and alerts that mean act now.

Choose your model

Available for 11 model families. The engineering substance is the same in each; the structure, checklist phrasing and constraint ordering are tuned per family.