GPT-5.5 by OpenAI
OpenAI's smartest and most intuitive to use model yet
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Apr 2026Last Update
About GPT-5.5 by OpenAI
GPT-5.5 is OpenAIβs most advanced model yet, designed to handle real-world work with greater autonomy, speed, and efficiency. It excels at coding, research, data analysis, and task execution β planning, using tools, and iterating with minimal guidance β making it a powerful partner for complex, multi-step workflows.