Claude Fable 5.1 & GPT-6 Astra packages are live

runwayml

Design

Runway's interface is a cinematic reel brought to life as a website — a dark, editorial, film-production-grade design where full-bleed photography…

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.