Claude Fable 5.1 & GPT-6 Astra packages are live

budgets

Performance

Performance budgets as a CI contract — p50/p95 latency and RSS caps per scenario, a reproducible benchmark script, a committed baseline, and a…

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.