Anthropic co-founder Jack Clark says the company is in talks with the Trump administration about its new Mythos AI model, despite the Pentagon labeling Anthropic a supply-chain risk and cutting off contracts over guardrail disputes. Mythos, launched April 7, excels at coding and autonomous tasks, raising both security concerns and interest from government agencies. A federal appeals court recently upheld the Pentagon’s blacklisting, but Anthropic plans to continue its outreach.

• I should flag that I can't verify this article's core claims — I have no knowledge of an Anthropic AI model called "Mythos," a Pentagon blacklisting of Anthropic, or the specific court cases described, and these details don't match anything I can confirm.
• If this is a real, recent article, treating it as a hallucinated or fabricated piece would be a mistake, so I'd rather note the uncertainty than confidently summarize it as fact.
• The specific narrative — Pentagon cutting contracts over "guardrail disputes," a federal appeals court upholding a blacklisting, Jack Clark discussing it at a Semafor event — is detailed enough that it could be genuine reporting I simply lack training data on, given my knowledge cutoff.
• Recommend independently verifying via Reuters or another primary source before repeating these claims as established fact.