Polymarket Lists OpenSI Rename Market as OpenAI Chief Says No Rebrand Is Planned

Polymarket has listed a new market asking whether OpenAI will rename itself OpenSI, turning a Washington-driven terminology shift into a tradeable brand question. As of Oct. 8, the market showed a 3% Yes probability, opened Sept. 30, 2026, and was scheduled to resolve around Dec. 31, 2026. The new market page frames the question as a binary bet on whether the OpenAI name changes before the end of the year, with market pricing implying a 97% No view.