US–China promise an AI “dialogue” — but who audits the incident hotline?

I don’t doubt Washington and Beijing can set up a call. I doubt they can agree on what, exactly, the call is supposed to mean.

The BBC reports that, after the Trump–Xi summit in Washington, China says the two sides agreed to launch a new “AI dialogue” and create a communication channel for “AI-related incidents,” framed as guardrails to prevent misunderstandings spiralling into confrontation BBC. Fine. But an incident mechanism without a shared measurement regime isn’t a guardrail; it’s a press release with a dial tone.

Start with the missing definition. What counts as an “AI incident” in state-to-state terms: model theft, data poisoning, autonomous target misclassification, a cyber operation that merely uses an LLM, a private-company mishap that creates diplomatic heat? If each side gets to label only the events that serve its narrative, the channel becomes a selective-disclosure machine: report what flatters your competence, bury what shows loss of control.

Then there’s the evidence problem. Even if both capitals want de-escalation, you can’t de-escalate on vibes. What is the minimum evidentiary package when the hotline rings—logs, hashes, timelines, model lineage, third-party attestations? Who is compelled to provide it: only governments, or also firms? The BBC notes there were no joint statements and few breakthroughs—just separate accounts, a sign of continuing wariness. That wariness is exactly why unverifiable incident claims will be treated as accusations, not alerts.

And look at what the summit didn’t touch: no sign of easing advanced US semiconductor restrictions, and no mention of increased rare earth exports. That’s the hard power substrate of the AI race. A hotline is cheap; compute is not.

If this channel is meant to be more than reputation management, it needs auditability: a shared taxonomy, mandatory reporting thresholds, and a verification pathway that doesn’t require handing over crown-jewel IP. Otherwise “we have a channel” will become the new “trust us.”