Claude Fable 5 Launch, Initiative & Orchestration

Anthropic's new Mythos-class Fable 5 hit 91/100 benchmarks with 1M context and ~2x Opus pricing, included in Max plans only until June 22. Builders praised its autonomous initiative, 5-second compactions, and orchestrati…

Anthropic released Fable 5 mid-day via /model claude-fable-5 in Claude Code v2.1.169+, with a reported 91/100 senior engineer benchmark (Opus 4.8: 63, GPT-5.5: 62), 128k context, and 2x Opus pricing. Builders praised one…