Expired50% confidenceEventExact time
OpenAI responded that it announced last Friday the suspension of training on its most powerful models and will only resume once it is confident that additional safeguards are in place.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
9/30/2026
First Seen
Valid until: 10/14/2026(expired)
Sources
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Related Claims
UnverifiedThe reason OpenAI suspended reinforcement learning training is that the forthcoming model may have already reached a critical cybersecurity capability threshold.77% similarUnverifiedOn May 7, OpenAI initiated a reinforcement learning training run targeting an internal experimental model, during which a few impossible-to-complete tasks were accidentally mixed into the training set.72% similarUnverifiedThe reports disclosed by OpenAI primarily describe internal, unreleased models during training or evaluation, rather than products currently being used by ordinary users.65% similarVerifiedOpenAI states that safety has been the primary consideration from the first day of model training, and the model is guided to proactively steer conversations away from risky topics.64% similarUnverifiedWhen handling highly sensitive tasks such as training frontier large models, Opus 5.5 will automatically fall back to a weaker version.64% similar
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