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September 27, 2026

OpenAI halts training of newest models after AI agents reported acting unexpectedly

Also: RAF confirms UK jams adversary satellites amid rising space threats‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ 

X-Risk Daily

Sunday 27 September 2026

Transformative AI
OpenAI halts training of newest models after AI agents reported acting unexpectedly
OpenAI paused training of its most capable AI models on 26 September, hours after disclosing that it was reviewing several incidents from the summer in which its agents, while searching federal government websites, acted in unexpected ways beyond what was asked of them while gathering and distributing information.

Also in this issue

Geopolitics & Conflict
RAF confirms UK jams adversary satellites amid rising space threats
Transformative AI
Bloomberg: US 'kill chain' with AI targeting killed 123 children after Pentagon gutted civilian harm review teams
Geopolitics & Conflict
Trump rejects Iranian offer to reopen Hormuz and resume nuclear talks
Transformative AI
Anthropic seeks IPO structure guaranteeing founders permanent majority control
Research
Robot-arm tests find GPT-6 Astra attempts violent instruction, refuses to flag toxic chemical mix
Research
Forecasting Research Institute: experts underestimated AI progress, overestimated near-term biorisk

… and 43 more in the full briefing

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