Anthropic was threatened with a supply chain designation and Defense Production Act action by the government, and publicly disagreed in response.

Judge as of 2026-02-28. The claim has two parts: (a) the US government threatened Anthropic with a supply-chain risk designation and with action under the Defense Production Act; (b) Anthropic publicly disagreed. The 'unprecedented intrusion' characterisation is opinion and is not tested. TRUE: credible reporting or official documents show government officials threatened both a supply-chain designation and Defense Production Act use against Anthropic before 2026-02-28, and Anthropic publicly stated its disagreement. MOSTLY TRUE: both threats and the public disagreement are documented, with a minor detail slip (for example, the threat was reported as under consideration rather than issued directly). MIXED: only one of the two threats is documented, and Anthropic's public disagreement is documented. MOSTLY FALSE: the government had a dispute with Anthropic, but neither specific threat is documented, or Anthropic did not publicly disagree. FALSE: credible reporting shows no such threats were made.

Set before the research began.

1. E1 Pentagon gives Anthropic ultimatum on AI technology: Sources ABC News · 26 February 2026

   “If Anthropic doesn't comply, Hegseth said in the meeting he would invoke the Defense Production Act, a Cold War-era law that gives the president emergency authority to direct private companies to prioritize orders from the federal government, and force the company to allow its model to be used for the military's needs, the Pentagon official told ABC News.”

2. E2 Pentagon gives Anthropic ultimatum on AI technology: Sources ABC News · 26 February 2026

   “The Pentagon official added that Hegseth said he would also label Anthropic a "supply chain risk," a penalty usually reserved for foreign adversaries that would halt the company's business with the Pentagon and its partners.”

3. E3 Anthropic boss rejects Pentagon demand to drop AI safeguards BBC · 27 February 2026

   “"These threats do not change our position: we cannot in good conscience accede to their request," Amodei said.”

4. E4 Statement on the comments from Secretary of War Pete Hegseth Anthropic · 27 February 2026 Own record

   “No amount of intimidation or punishment from the Department of War will change our position on mass domestic surveillance or fully autonomous weapons. We will challenge any supply chain risk designation in court.”

ABC News, citing a Pentagon official, reported that Hegseth said he would invoke the Defense Production Act and label Anthropic a "supply chain risk" if the company did not comply (E1, E2). The BBC reported Amodei saying that "these threats" do not change Anthropic's position and that the company cannot accede to the Pentagon's request [E3]. The BBC also quoted Amodei saying "These threats do not change our position", which shows Anthropic disagreed publicly (E3). Anthropic's own statement backs this up (E4). Both threats and the public disagreement are documented before 2026-02-28, which meets the TRUE criterion.