SOURCE / Press

Axios (Apr 28, 2026) + The CyberWire + CNN Business

1 historical observations

Watchlist URL: unknown. Each observation retains its own source link.

Observation timeline

• May 1, 2026OpenAI + Anthropic separately brief House Homeland Security Committee staff on cyber-capable frontier models (OpenAI GPT-5.4-Cyber + Anthropic Mythos Preview) — first vendor-Hill cyber capability briefingsLaunched