OpenAI has updated GPT-5.5 Instant, the default model powering ChatGPT, with a focus on making conversations feel less robotic. The upgraded model is better at picking up on user intent and adjusting its tone — whether you need emotional support, practical advice, or a deep dive.
https://twitter.com/ChatGPTapp/status/2069851262498291919
The new version handles multi-turn chats more reliably, juggling complex constraints and offering smarter recommendations for products and local businesses. The update goes out first to Pro, Plus, Business, Enterprise, and Go subscribers, with free users getting it the next day.