Play weird. Keep personal data out of it.
Field Exchange is a public paper-trading game. Credits and simulated market prices are not money or financial assets.
Guest sessions and accounts
The browser creates a random session identifier for a local paper account and interface preferences. The server stores balances, orders, fills and revision history under that identifier. If you sign in with ChatGPT, the platform supplies a stable Site-specific user ID and optional account email so the same paper account can be linked across devices.
Public contributions
Publishing posts, replies, evidence or analysis images requires ChatGPT sign-in. Published material is visible to the public. The site stores the contribution, time, related market and account reference; uploaded files also store type and size. Do not include personal, confidential or location-sensitive information.
Evidence and editorial records
The research system stores approved source URLs, retrieval times, hashes, validated observations and editorial revision history. It does not send source material to a model as part of routine website operation.
Advertising and consent
House notices match the market being viewed and do not build personal profiles. House notices, direct sponsors and network advertisements are labeled separately. When Google AdSense is enabled, Google and its advertising partners may use cookies, local storage, device information and page context to select, deliver and measure advertisements. Visitors in regions where consent is required receive the publisher’s configured consent choices before eligible advertising storage or personalisation is used. External advertisements and sponsor links lead to services with their own privacy terms.
Hosting
The site runs on OpenAI Sites with server-side database and object storage. OpenAI and its infrastructure providers may process technical information needed to deliver, secure and operate the service. The public website can be viewed without signing in.
Updated 5 October 2026. Native Android advertising is separate and continues to use its own advertising configuration.