GPT-5.5-Cyber Tops Mythos on CyberGym as Policy Tensions Loom
TL;DR Summary
OpenAI's GPT-5.5-Cyber scores 85.6% on CyberGym, higher than Mythos 5 at 83.8%; the White House has not commented on a Mythos-like model, while Anthropic faces export controls limiting foreign nationals’ access. OpenAI expands international cybersecurity partnerships, and Mythos access was a talking point at the G7 summit, underscoring policy tensions shaping AI releases.
- White House quiet on OpenAI's Mythos-like model Axios
- Daybreak: Tools for securing every organization in the world OpenAI
- IBM partners with OpenAI on enterprise security AI Reuters
- OpenAI Launches Full-Scale Effort to Patch Open-Source Bugs as It Takes on Anthropic’s Mythos WIRED
- IBM and OpenAI Bring Frontier AI to Cyber Defense—Helping Enterprises Keep Pace with Machine-Speed Threats IBM Newsroom
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