OpenAI Releases GPT-5.5, Its Most Advanced AI Model Yet
OpenAI launched GPT-5.5, its latest and most powerful AI model, featuring superior performance on complex reasoning tasks and designed for autonomous software development and research applications.
GPT-5.5 Unveiled
OpenAI released GPT-5.5, its smartest and most intuitive model yet, designed for complex, multi-step tasks like writing and debugging code, online research, data analysis, document creation, and operating software interfaces autonomously. The model rolls out immediately to ChatGPT Plus, Pro, Business, and Enterprise users, with GPT-5.5 Pro for higher-stakes work and API access coming soon.
Benchmarks show it leading in Terminal-Bench 2.0 (82.7%), Expert-SWE, FrontierMath, CyberGym, and others, outperforming Claude Opus 4.7 and Gemini 3.1 Pro across most categories.