【#Tech24H】OpenAI has officially released GPT-5.5 Instant, setting it as the default model for ChatGPT, replacing the previous GPT-5.3 Instant, and making it available to all users. The Instant series is ChatGPT’s daily workhorse model, used by hundreds of millions of users every day. According to the company, at this scale, even small improvements add up to a considerable effect. This version focuses on three things: more accurate, more concise, and more attuned to you. [ By Zhang Liyan | Tang Ruohan ]