Polymarket Favors New Anthropic Opus Release as AI Safety Concerns Intensify

Prediction-market traders on Polymarket are betting that Anthropic will ship its next Claude Opus model within days. The contract for a public release by September 24 was trading around 83 cents on the dollar as of Monday, September 21, implying roughly an 83% probability. Confidence rises to 94% for September 30, about 98% by October 31, and above 99% by year-end. The market opened on September 15 and has drawn approximately $240,925 in volume. A qualifying model must be a publicly accessible release explicitly named Opus, with an open beta or rolling waitlist counting. Other models such as Sonnet, Haiku, Fable and Mythos do not qualify. Anthropic has not officially confirmed any release date or version number. Polymarket's page ties the late-September consensus to reported stealth testing of a model codenamed claude-wafer-eap, possibly Claude Opus 5.5, though this remains unverified speculation.