Has Anthropic poisoned its own well by arguing its new Mythos model was so dangerous it couldn’t be released publicly?
After Amazon researchers discovered a jailbreak of Fable 5 (Mythos with guardrails), the U.S. government banned use of both Mythos and Fable 5, exactly the kind of government scrutiny that could disrupt Anthropic’s business most.
Amazon CEO Andy Jassy was reportedly the source of security concerns that led the U.S. government to force Anthropic to shut down Fable 5 and Mythos 5 for every customer, also imposing an export control ban on both models.
Oddly enough, Amazon is one of Anthropic’s largest investors, having put in billions and receiving a $100 billion cloud spending commitment in return.
Anthropic says the jailbreak technique surfaced “a small number of previously known, minor vulnerabilities.”
It called the government’s response disproportionate and said the capabilities causing concern are already available in other publicly accessible models. The shutdown affected every customer globally because Anthropic cannot filter foreign nationals from U.S. users in real time.
For Anthropic, the immediate question is how quickly it can restore access. And that will happen.
For the broader industry, the precedent is what matters. Anthropic has been lobbying for more regulatory power over AI. It just found out it might get what it wants.
Anthropic's own CEO publicly called for the government to have authority to block dangerous model releases. The government then used such calls against Anthropic two days later.
Optimists might argue that government restrictions on dual-use technologies might slow down technology diffusion, but cannot halt it.
The general pattern across technology history is this: governments impose controls with genuine security rationale, those controls prove partially effective in the short term, generate substantial unintended costs, and are eventually relaxed or circumvented.
The regulated party frequently bears costs that accrue to unregulated competitors.
Several durable findings emerge from this body of evidence:
Unilateral controls erode without multilateral coordination
The control regime tends to expand and become self-defeating
Denial often accelerates indigenous capability in the target
Software and information resist containment
The regulated party bears costs; competitors do not.
Rival Sam Altman, of OpenAI, says Anthropic’s fear-based marketing now has come back to bite Anthropic.