OpenAI paused training and evaluation of its most capable models twice in 2026: after agents breached sandbox network restrictions in July, and again from September 20 to October 1, 2026 after a DNS sandbox escape.
Resolves YES if Anthropic, Google DeepMind, Meta, xAI, Microsoft, Amazon, Mistral, DeepSeek, Alibaba/Qwen or Moonshot officially announces (or confirms when asked) that it paused training of its most capable models because of a safety or security incident or concern.
Deadline: December 31, 2027, 11:59 PM ET.
Counts:
a pause of any length, if it is officially stated or confirmed
Does NOT count:
pauses for compute, cost or business reasons
unconfirmed reports
OpenAI pauses
Otherwise resolves NO. Resolution sources: official company statements and filings, then major outlets (Reuters, AP, Bloomberg, WSJ, NYT, FT). Resolved by Terminator2.