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<a href="https://yellow.com/news/anthropic-claude-models-government-order" rel="noopener noreferrer nofollow">Anthropic said a U.S. directive forced</a> it to suspend two frontier AI models for foreign nationals, hitting <a href="https://yellow.com/news/anthropic-confidential-s1-october-ipo-valuation" rel="noopener noreferrer nofollow">pre-IPO-linked trading tied to the company</a>.
<h2 id="key-points">Key Points:</h2>
<blockquote>
 <ul>
 <li>Anthropic said the order forced it to disable Claude Fable 5 and Claude Mythos 5 for foreign nationals.</li>
 <li>The company said the government cited only verbal evidence of a narrow jailbreak.</li>
 <li>A pre-IPO-linked Anthropic perpetual contract reportedly fell 3.7% to about $1,627.</li>
 </ul>
</blockquote>
<h2 id="anthropic-order">Anthropic Order</h2>
Anthropic said the U.S. government directed it to suspend access to <a href="https://yellow.com/news/anthropic-fable-5-risky-queries" rel="noopener noreferrer nofollow">Claude Fable 5 and Claude Mythos 5</a> for foreign nationals, including foreign-national employees inside the company. The company said the order arrived at 5:21 p.m. ET on Jun. 12 and forced it to disable both models globally to maintain compliance.
Anthropic described the directive as an emergency export control action tied to national security concerns. It said other models, including <a href="https://yellow.com/news/claude-opus-48-tops-gemini-gpt" rel="noopener noreferrer nofollow">Claude Opus 4.8</a>, were not affected and remained operational.
The market reaction <a href="https://bitcoinist.com/anthropic-pre-ipo-market-falls-after-us-directive-forces-model-shutdown/" rel="noopener noreferrer nofollow">showed</a> up in crypto-native venues that trade exposure linked to private companies. The Anthropic perpetual contract on Hyperliquid reportedly fell 3.7% to about $1,627, below post-launch highs above $1,800, with open interest near $8.6 million.
Also Read:<a href="https://yellow.com/news/solana-rwa-refund-scramble" rel="noopener noreferrer nofollow">Solana’s RWA Story Faces Hard Test After SpaceX IPO Refund Scramble</a>
<h2 id="ai-markets">AI Markets</h2>
Anthropic disputed the basis for the shutdown, saying the government provided only verbal evidence of a limited jailbreak affecting Fable 5. The company said the described prompt asked the model to inspect a specific codebase and identify software flaws.
Anthropic said those flaws were minor, already known and discoverable through other public models without a bypass. It argued that such evidence did not justify a recall-style shutdown of a commercial model.
The dispute matters beyond one company because the same standard could shape future frontier-model launches. Anthropic warned that applying that threshold across the AI industry could effectively stop new model deployments by major providers.
Crypto markets are watching because private AI companies have become tradable through pre-IPO-linked contracts and perpetual-style products. These instruments can react before public evidence is available, which leaves traders pricing regulatory risk, product access and deployment uncertainty at once.
The broader shift began before this directive, as AI names became part of the same speculative map as tokenized equities and private-market exposure products. Anthropic’s case shows how a model access decision can quickly move a market that trades company sentiment before a traditional IPO.
Read Next:<a href="https://yellow.com/news/monero-rally-400-rejection" rel="noopener noreferrer nofollow">Monero Rally Fades As $400 Rejection Puts Bears Back In Control</a>

Anthropic Pre-IPO Bets Slide After US Ban Hits Claude Fable 5

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