Anthropic Ships Claude Fable 5 and Mythos 5 Across All Major Cloud Platforms on Day One

Anthropic released Claude Fable 5 and Mythos 5 on June 9, 2026, making both models simultaneously available via AWS Bedrock, Google Vertex AI, Microsoft Foundry, and its own Claude API. The coordinated multi-cloud distribution eliminates the typical delay between model release and enterprise deployment by removing switching costs between inference environments. Each platform integrates with existing security, billing, and compliance frameworks, reducing procurement friction for teams already anchored to specific hyperscaler stacks.