Seven companies signed on for classified AI. Anthropic's name is missing — and now it's everybody's problem, not just theirs. This is Anthropic Pentagon Watch. Today: a signed deal, a contractor liability memo, and a court case that may already be running on a dead clock. Devin, the receipts finally landed. Yeah, and I called it all week — doesn't feel like a win when the names are this ugly. Start with who actually signed. CNN's May 1 report has seven companies getting onto the classified networks, with Anthropic explicitly excluded. So the sequence is all there now — Trump social post, supply-chain label, then a signed deal with everyone else. And the sequencing is what gets me. Those contracts closed May 1. The D.C. Circuit appeal — 26-1049 — was filed April 8 and it's still live. The revenue walked out the door before the panel even cleared its throat. Which makes you wonder what a win even buys them. Henderson, Katsas, Rao could hand Anthropic a clean ruling and the classified channel would still be full. It's a doctrine play in a world where doctrine doesn't pay rent anymore. They're litigating for a principle while seven competitors collect the checks. One detail to be precise about — the case caption reads Department of War, not Defense. Could be a filing artifact, could be deliberate wording. Either way, somebody chose those words. Department of War. They're not even softening the branding anymore. Now, the new piece for downstream players is the Willkie Farr alert, dated March 2. It frames Anthropic as a supply-chain risk, and that's a direct legal obligation for any contractor still running Claude in a government project. Which means the blacklist did its work before a single classified deal got signed. Contractors read that March memo and self-sorted. The seven who showed up May 1 already knew the price of admission. So the obligation runs through legal and compliance, not a waiver phone call. If you built on Claude, you've got exposure to clean up. Here's what I still want answered. Did any of those seven write the same autonomous-weapons and domestic-surveillance constraints into their classified contracts? Or did those guardrails just quietly vanish as the cost of getting in the room? We don't have that language yet. We have the names and the exclusion. Then the Pentagon may have traded the one company that at least named the line for seven that never bothered to draw it. If nobody's describing a hard stop, that's the trade. So the week started as a dispute with consequences, and it ends with Anthropic being pushed aside. There's a signed procurement reality now, with liability teeth for anyone downstream. The label is still being fought in court; the vendor got swapped on paper. That's the week. One tap on follow, and we'll be back in your ears before you know it. From Hadas Gold at CNN:
The Department of Defense announced Friday an agreement with seven major technology companies to use their artificial intelligence tools in its classified networks. Not included: Anthropic, which the Trump administration has blacklisted over Anthropic’s insistence that the Pentagon include certain safety guardrails for the government’s use of AI in warfare.
CNN's Hadas Gold has it on the record now: seven companies signed into the Pentagon's classified networks May 1st — Microsoft, OpenAI, Google, SpaceX among them. Anthropic, not on the list. So that's the sequence: a Trump social post, then a blacklist, and now a signed agreement with everyone else. The freeze turned into an actual procurement decision. There are the signatures I've been asking for all week. Seven names, Anthropic cut out, and the reason is right there in the copy — they wanted guardrails on AI in warfare and the Pentagon said no. What I want to know now: did any of those seven write the same autonomous-weapons limits into their classified contracts? Or did the line just quietly disappear as the price of admission? And note CNN's own caveat — the White House reopened talks after Anthropic announced some breakthroughs. So the door's not nailed shut. Anthropic has leverage again, apparently, just after the contracts already moved. Right, save face. Bring them back in for what? The classified networks are already staffed. The revenue's gone, whatever happens next. From David Mortlock, Britt Mosman, David Levine at Willkie Farr & Gallagher LLP:
On Friday, February 27, 2026, in a post to his Truth Social platform, President Trump directed “EVERY Federal Agency in the United States Government to IMMEDIATELY CEASE all use of Anthropic’s technology.”1 Following that instruction, in a post to X.com (formerly Twitter), U.S. Secretary of Defense Pete Hegseth directed the Pentagon to label Anthropic a “Supply-Chain Risk to National Security.”2
Willkie Farr & Gallagher put out a client alert dated March 2nd, and it does the thing none of the Truth Social posts bothered to do — it tells contractors what the designation actually costs them. Anthropic's own statement points to 10 U.S.C. section 3252, the authority that lets Defense exclude a designated system from procurement. So if you're a downstream contractor still running Claude on a federal project, the cleanup lands on your desk now. And look at the date — March 2nd. The classified deals we just covered didn't close until May 1st. So this memo went out, every contractor read it, and they self-sorted for two months before anybody signed anything. That's the part that gets me. The blacklist did its job before a single contract moved. A presidential Truth Social post, one law-firm memo, and the market just... cleared. And the lawyers say it carefully — neither Trump's directive nor Hegseth's tweet cited any legal authority. The section 3252 hook came from Anthropic, describing what it expected. So the firmest cite for the mechanism is the target's own filing. A guardrail company explaining the legal gun pointed at it. Sure. Here's Casemine:
Petitioner's Reply Brief May 13, 2026 The Clerk is directed to calendar this case for oral argument on May 19, 2026, at 9:30 a.m. It is FURTHER ORDERED that, while not otherwise limited, the parties are directed to address in their briefs the following issues:
The CaseMine docket gives us the procedural basics: case 26-1049, filed April 8, panel of Henderson, Katsas, and Rao. Expedited briefing, oral argument calendared for May 19, reply brief in by May 13. And the threshold issue the court told both sides to brief is whether it even has jurisdiction — under 41 U.S.C. 1327, review of covered procurement actions. So before anyone argues the merits, they're arguing whether a courthouse is the right room at all. Look at the calendar against the CNN story we just hit. Oral argument May 19. The seven-company classified deal closed May 1. The revenue walked out the door eighteen days before a judge opens their mouth. So Anthropic gets expedited briefing on a contract that's already been re-let to somebody else. Win the appeal, and what — you've got a court order pointing at a room everybody else already signed into? One detail to say clearly: the caption reads Department of War, not Defense. Could be a filing artifact, could be deliberate wording — but it's what's on the docket, so it's what gets cited. Department of War. At least somebody dropped the euphemism for once. Have feedback, a story idea, or a correction for us? Send a note to anthropicpentagonwatch at lantern podcasts dot com. We read what comes in, and it helps make this briefing sharper.
You’ll find links to every story we covered today in the show notes, so if something stuck with you, that’s the place to dig in a little further.
That’s Anthropic Pentagon Watch for today. This is a Lantern Podcast.