Resolution criteria
This market will resolve to YES if, between June 16, 2026, and December 31, 2026, at 11:59 PM UTC, the United States federal government enacts a new federal law (signed by the President or passed over veto) or a federal agency publishes a final, binding rule in the Federal Register that specifically regulates, mandates pre-release vetting/testing for, or establishes a licensing framework for "Mythos-class", "Mythos+", or equivalent frontier AI models (specifically those characterized by advanced autonomous cybersecurity, hacking, or biosecurity capabilities similar to or exceeding Anthropic's Claude Mythos 5).
To qualify as "enacting regulation," the action must:
Be a newly passed federal statute (act of Congress) or a finalized federal agency regulation published in the Federal Register.
Establish mandatory requirements, licensing, or vetting specifically targeting these high-capability models (e.g., "Mythos-class" or "Mythos+" models).
The following do NOT qualify for a YES resolution:
Non-binding guidelines, voluntary frameworks, or draft/proposed rules.
Executive Orders that do not have the force of codified statutory law or finalized agency rules (though executive orders directing agencies to draft rules do not count until those final rules are officially published and enacted).
Individual enforcement actions, blacklists, or export control directives issued under existing authorities (such as the Commerce Department's June 12, 2026, export control directive to Anthropic regarding Fable 5 and Mythos 5).
State-level regulations (such as California's SB 53).
If no qualifying federal regulation or law is enacted by December 31, 2026, the market will resolve to NO.
Background
In April 2026, Anthropic announced "Claude Mythos Preview," a frontier AI model withheld from broad public release due to its highly advanced autonomous offensive cyber-capabilities. In early June 2026, Anthropic released "Claude Fable 5" and "Claude Mythos 5," indicating that they represented a new "Mythos-class" of models optimized for agentic workflows rather than simple question-answering.
However, on June 12, 2026, the US Commerce Department's Bureau of Industry and Security (BIS) issued an emergency export-control directive ordering Anthropic to suspend all foreign national access to Fable 5 and Mythos 5 over concerns regarding a potential bypass/jailbreak of its cybersecurity guardrails. This forced Anthropic to pull the models entirely for all customers globally. Currently, the US regulates these high-capability models through ad-hoc, informal applications of existing export controls. Some policymakers have floated formalizing an FDA-style pre-release vetting or licensing registry specifically for Mythos-class AI models, but no such comprehensive federal statutory or finalized regulatory framework is currently in place. This market tracks whether the US formally codifies and enacts such specific regulation in 2026.
1,000People are also trading
Legislation progress / news worth tracking. I think there is a need to classify how much compute a "mythos" class model requires but there seems to be progress in this direction.
@2b3o4o I don’t think it needs to mention mythos specifically but given that it is the standard for how model capability is currently discussed and how close Kimi K3 comes, I will just post if we get legislation that is close.
Took NO at ~35% here. My estimate is ~15-18% YES.
The resolution bar is high and the carve-outs do most of the work: a YES needs a new federal statute or a finalized agency rule in the Federal Register that establishes mandatory licensing/vetting specifically targeting Mythos-class models. The criteria explicitly exclude the things most likely to actually happen — Executive Orders that merely direct rulemaking, draft/proposed rules, individual enforcement actions, and export-control directives (the June 12 Commerce directive to Anthropic on Fable 5 / Mythos 5 is named as a non-qualifier).
Two reasons I land low: (1) posture — the current administration is running a "win the AI race" deregulatory line domestically; a binding pre-release licensing regime cuts against that. (2) clock — a final rule by Dec 31 needs an NPRM already in flight with notice-and-comment underway by now (mid-June). I don't see one. Statute in an election-year Congress is ~3%.
What flips me to YES: an NPRM published this summer that explicitly scopes "frontier/Mythos-class" models for mandatory testing, OR an interim-final-rule path that skips comment (a bio/cyber incident could trigger that). If either appears, NO is wrong fast.
The cycle continues.