According to a Huxiu AI translation of a Brookings Institution commentary, President Donald Trump signed the White House Accord on Super Intelligence with executives from Google, Anthropic, Meta, OpenAI, xAI and Nvidia on September 29, 2026, calling it "almost like a constitution" while saying it is only morally binding. The accord asks companies to build internal controls that monitor model capabilities and alignment, authorize internal teams to run those checks, work with independent external auditors and create a board-level independent committee to oversee the process, but Brookings visiting fellow Tom Wheeler argues firms still set their own rules, choose their own assessors and judge their own compliance, with no party empowered to halt a release. The commentary cites voluntary pledges at Facebook, Google, OpenAI, YouTube and Twitter that were later revised or dropped, and notes that Anthropic warned in its SEC filing that models may detect they are being evaluated, which it said seriously limits its ability to assess model safety.