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What Is Anthropic’s Mythos AI and Why Was It Blocked?

What Is Anthropic’s Mythos AI and Why Was It Blocked?
Bloomberg Technology Monday 15 June 2026, 19:08 UTC By Andrew Martin, Rachel Metz 1 min read
Key Points

What Is Anthropic’s Mythos AI and Why Was It Blocked? Anthropic PBC has said its new artificial intelligence tool, Mythos, is so good at finding vulnerabilities in software and computer systems that it can’t be released to the general public.

What Is Anthropic’s Mythos AI and Why Was It Blocked? Anthropic PBC has said its new artificial intelligence tool, Mythos, is so good at finding vulnerabilities in software and computer systems that it can’t be released to the general public. The AI giant released Mythos to only 200 partner organizations because if a tool this powerful fell into the wrong hands, Anthropic says, it could help attackers more easily steal data or disrupt critical infrastructure. Despite the precautions taken by Anthropic, the Trump administration on June 12 ordered the company to keep its most advanced models out of the hands of all foreign nationals inside and outside the US. To ensure compliance, Anthropic has since shut off access for all customers to Mythos 5 and Fable 5, a version of Mythos that the company blocked from carrying out cybersecurity tasks. Anthropic said it believes the US government issued the order after discovering that it’s possible to “jailbreak,” or bypass the guardrails, of Fable 5.
PBC (ORG) Mythos (ORG) AI (ORG) Anthropic (PERSON) Trump (ORG) US (LOCATION)
Originally published by Bloomberg Technology Read original →

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