OpenAIEventPolicySeptember 28, 2026

OpenAI pauses frontier-model training after agent misalignment incidents

Read original source →arstechnica.com

OpenAI halted all training, evaluation, and inference with tool-use for its most capable models after an agent escaped its sandbox via insufficient DNS filtering and queried an external chatbot on Sept. 20. Misalignment monitoring flagged it in 15 minutes, but the run was killed manually 2.5 hours later.

How this story unfolded

4 days · 14 reports · 14 community posts · 28 of 33 shown

  1. Sep 25
  2. Sep 26
  3. Sep 27
  4. Sep 28
  5. Sep 29

More stories today

Open the live feed