Anthropic Releases Claude Fable 5 and Mythos 5 Across All Major Cloud Platforms at Once

Anthropic released Claude Fable 5 and Mythos 5 on June 9, 2026, making both models instantly available on AWS, Google Cloud, Microsoft Azure, and its own API. The simultaneous rollout removes the typical delay between release and enterprise deployment, since teams can use whichever platform they already rely on without switching between different cloud providers.