OpenAI rolls out GPT 5.5 with new benchmarks in coding, science and knowledge work
The latest model combines efficiency and intelligence, targeting the full loop of work from research to finished output.
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Add us on Google by Vivian Nguyen Apr. 23, 2026OpenAI has delivered GPT-5.5, a major upgrade focused on intelligence, efficiency, and real-world usability. The model can interpret user goals more effectively and carry out complex tasks end-to-end, including coding, research, and data-driven workflows.
Introducing GPT-5.5
A new class of intelligence for real work and powering agents, built to understand complex goals, use tools, check its work, and carry more tasks through to completion. It marks a new way of getting computer work done.
Now available in ChatGPT and Codex. pic.twitter.com/rPLTk99ZH5
— OpenAI (@OpenAI) April 23, 2026
With enhanced agentic behavior, GPT-5.5 can plan, execute, and refine its work across tools, while maintaining GPT-5.4-level latency and using fewer tokens.
This is a developing story. Please check back for further updates.
Disclosure: This article was edited by Vivian Nguyen. For more information on how we create and review content, see our Editorial Policy.
