This market will resolve according to the date (ET) on which Anthropic's next Claude Opus model is made available to the general public. Claude Opus refers to a model by Anthropic explicitly named Opus. Qualifying models include Claude Opus 4.9, Claude Opus 5.0, Opus 5, or any other Opus variants. Models under any other name, such as Sonnet, Haiku, Fable, or Mythos, will not qualify, unless the model is explicitly and officially named Opus by Anthropic. A qualifying model must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any...