**Trader consensus on the Polymarket market heavily favors "No" at 98.6% because the sole source of speculation—an unverified January 2026 prediction in The Information—has produced no follow-through.** No official announcements, leaks, or credible reporting have emerged indicating active talks between OpenAI and Pinterest through September 2026. OpenAI has instead completed multiple smaller acquisitions focused on developer tools, agents, and infrastructure, while Pinterest has independently advanced its AI capabilities through partnerships with AWS and NVIDIA, new visual search and shopping features, strong user growth, and a $1 billion strategic investment from Elliott Management. A deal of this scale would also face significant antitrust scrutiny and corporate restructuring hurdles with little time remaining in the year. A late surprise pivot remains theoretically possible but appears improbable given the sustained silence and both companies’ demonstrated strategies.