OpenAI paused RL training on latest models; largest frontier run remains on hold

thesaraharminta · x · 2026-08-19

OpenAI revealed it paused reinforcement learning (RL) training on its latest models intended for deployment over the last two weeks to harden research environments. The company stated its largest planned frontier RL run remains on hold until safeguards are validated. Observers noted the statement's phrasing is slippery, possibly for legal or political reasons.

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