AI lab leaders back calls to slow the pace of frontier development

The Guardian reported on 12 September 2026 that OpenAI's chief executive, Sam Altman, posted that he agreed the frontier should be paced, and that OpenAI would also give independent evaluators employee-like access. Elon Musk posted: "Dario is right." The comments followed an essay the same day by Anthropic's chief executive.

What it means for business: more than one frontier lab has publicly backed outside evaluators.