Reported OpenAI Cookie Links ChatGPT to Commercial-Site Activity

Independent research reports that OpenAI's __obi cookie and related JWT/pixel mechanisms may connect ChatGPT accounts with browsing and shopping activity across sites, including consent signals, advertiser pixels, automatic data extraction, and potentially sensitive page-path exposure. CallRail's ChatGPT ads measurement product adds conversion pixels and API-based sharing of qualified-conversion data, but does not independently confirm the reported mechanism; OpenAI has not publicly detailed or confirmed it.