signal_tag · 2_broadcasts
#claude-fable-5
// 2 transmissions tagged with #claude-fable-5
TX_042530· AI
Claude Fable 5 launches as public model and restricted Mythos 5
Anthropic released Claude Fable 5 on June 9 2026, pairing a public model with a restricted Mythos 5 version. The launch adds three safety classifiers, routes refusals to Opus 4.8, and doubles the per‑token price.
TX_028087· AI
Anthropic releases system cards for Claude Fable 5 and Claude Mythos 5
Anthropic has published system cards for its Claude Fable 5 and Claude Mythos 5 models, detailing architecture, training data, performance benchmarks and safety guidelines for engineers evaluating integration.