Claude Fable 5.1 & GPT-6 Astra packages are live

graphql

API

GraphQL schema and server rules — bounding query cost, killing N+1 with dataloaders, per-field authorization, and errors clients can act on.

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.