OpenAI Blog · Apr 23, 2026
Introducing GPT-5.5
Reviewed by Errol Vogt, Site support technician & online learning analyst · original summary · editorial policy
Introducing GPT-5.5. Introducing GPT-5.5, our smartest model yet—faster, more capable, and built for complex tasks like coding, research, and data analysis across tools. This update is relevant for small-office operators tracking changes in their tools.
Operator takeaway: For operators: review whether 'Introducing GPT-5.5' affects your current setup before relying on it in production.