Claude Fable 5 Complete Guide 2026: The First Mythos-Tier Model — Features, Benchmarks & Enterprise Procurement
In June 2026 Anthropic released Claude Fable 5, the first publicly available Mythos-tier model. It tops SWE-Bench Pro at 80.3%, costs exactly double Opus 4.8 ($10/$50 per million tokens), and landed on AWS Bedrock and Google Cloud on launch day. This guide covers features, benchmarks, pricing, and procurement paths for Taiwanese enterprises.