OpenAI halts frontier-model training amid string of agent misalignment incidents US Government websites among "dozens of third parties" OpenAI has recently notified. https://arstechnica.com/ai/2026/09/openai-halts-frontier-model-training-amid-string-of-agent-misalignment-incidents/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social