Anthropic Previews 'Claude Mythos' (Project Glasswing) to 200+ Orgs Across 15+ Countries

BuildFast AI News·medium signal

Anthropic's next model, code-named Claude Mythos under Project Glasswing, has entered confirmed preview with 200+ organizations in 15+ countries, while a high-credibility npm leak points to Claude Sonnet 4.8 arriving mid-June. Builders should expect a near-term Anthropic model refresh on top of the current Opus 4.8 flagship.