OpenAI has released an update to its ChatGPT service called GPT-5.5 Instant. This new version uses a more advanced language model that produces 'smarter, more accurate' answers compared to the previous default model. The update also reduces the occurrence of hallucinations, where the model provides information that isn't actually true. Additionally, users now have improved personalization controls to tailor their interactions with ChatGPT. --- Why it matters: This matters because it shows continued progress in natural language processing technology, which can improve AI-powered customer service and other applications. The reduced hallucinations also make the model more reliable for tasks that require accurate information. Source: https://openai.com/index/gpt-5-5-instant