GPT‑5.5 Instant

GPT-5.5 Instant elevates the conversational experience, replacing its predecessor as a vastly enhanced default model. Key enhancements include: • More precise and concise information delivery • Greater accuracy with reduced factual errors • Enhanced personalization through past chat history and linked accounts • Granular control over memory sources This update significantly refines daily interactions for hundreds of millions of users. It delivers stronger and tighter answers across a broad spectrum of subjects, from STEM-related queries to image analysis. The model exhibits a more natural conversational tone and leverages shared context effectively to provide tailored responses. GPT-5.5 Instant shows notable improvements in factual reliability, particularly in high-stakes fields such as medicine, law, and finance. It demonstrably reduces hallucinated claims and corrects inaccuracies in challenging conversations. This generally smarter model is more capable across various everyday tasks, including deciding when to integrate web search for optimal answers. Tailored for all ChatGPT users, it makes every interaction more useful and enjoyable.