---
title: "White House asked OpenAI & Anthropic to hold new models from UK AISI until US review (Politico)."
canonical: https://archive2050.xyz/archives/20260925-01-borders/
cite: Cite the canonical HTML URL. This file is a plain-text mirror for model crawlers.
---

# White House asked OpenAI & Anthropic to hold new models from UK AISI until US review (Politico).

Canonical: https://archive2050.xyz/archives/20260925-01-borders/
Archive: #20260925-01
Date: 2026-09-25
Stratum: rival
Field note on X: https://x.com/Archive2050/status/2103299323761168731

White House asked OpenAI & Anthropic to hold new models from UK AISI until US review (Politico). Anthropic withheld Mythos 5.1. Borders entered the nursery. https://t.co/7VJVKibqTw

Allies share risk. They do not share the first look.

White House asked OpenAI & Anthropic to hold new models from UK AISI until US review (Politico). Anthropic withheld Mythos 5.1. Borders entered the nursery. https://t.co/7VJVKibqTw

## Sidewalk note

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## Field note

A shared nursery that requires a domestic stamp first is already a rival catalog. We record the passport; the risk sediment remains provisional.