The OpenAI pivot: from owning checkout to enabling it keeps issuers on the rails Sep 2025 · owning checkout Mar 2026 · enabling checkout card placement · the new battleground OpenAI builds no issuer-bypassing payments stack ChatGPT agent Instant Checkout in-chat · Stripe rails take rate model trust gate tiny conversion Mar 2026 · pivot drops in-chat checkout drops the fee model ChatGPT agent discovery + cart-building merchant checkout system of record redirect / in-app delegate to card placement Synchrony plugin + store-card pilots surface the card at checkout targets placement card placement which card is surfaced issuer on the rails card placed · value shared value capture shrinks issuer loses placement if merchant / network consolidates checkout