ChatGPT, OpenAI Inc., San Francisco, California, USA


Introducing GPT-5.5

Apr 23, 2026

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.
 

Introducing GPT-5.5 with NVIDIA

Apr 24, 2026

"GPT-5.5’s superpower is that it can just get things done.

”It’s so cool to see how masters of the AI universe like NVIDIA’s Dennis Hannusch are leveraging GPT-5.5-Codex for complex engineering tasks.

Be like Dennis.
 
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