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OpenAI has restarted frontier model training after an 11-day halt, a pause reported alongside a security breach and the disabling of internet access during training.

A training stoppage of this length delays model release timelines and shows that security isolation now constrains how frontier compute capacity is actually used.
Trade pressSlicast · October 24, 2026 at 01:07 UTC · US · Source: https://tech-insider.org/
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OpenAI has restarted frontier model training… · Slicast