GPT-5.5 Instant Arrives with Personalization and New Ad Moves 2026-05-05

GPT5.5 Instant System Card Published GPT5.5 Instant system card: OpenAI details safety mitigations and highrisk cyber, bio, and chem preparedness updates. Read the latest model notes now. OpenAI and PwC expand AI use in finance operations AI agents for finance teams streamline planning, reporting, and close cycles. PwC and OpenAI pair automation with governance to boost efficiency and control. OpenAI expands ways to buy ChatGPT ads ChatGPT ads pilot expands with selfserve tools, CPC bidding, and better tracking Create campaigns faster while keeping ads separate and privacyfirst in ChatGPT AI data centers move offshore Panthalassa floating compute uses wave power for AI chips at sea Peter Thiel backs ocean data centers—see why offshore rollout is coming OpenAI launches GPT5.5 Instant with stronger personalization GPT5.5 Instant powers ChatGPT with smarter, clearer, more personal replies See improved accuracy, memory, and search help as the rollout expands