Sign of the future: GPT-5.5

One Useful Thing · 2 months ago

OpenAI released GPT-5.5, a new model family with improved coding and reasoning capabilities compared to previous versions. GPT-5.5 Pro completed a 3D harbor town simulation task in 20 minutes compared to 33 minutes for GPT-5.4 Pro, and demonstrated the ability to generate academic papers from raw data and create illustrated tabletop roleplaying games. The model advances across three areas—models, applications like desktop Codex, and tool integrations—enable more complex tasks, though limitations remain in long-form fiction generation.