OpenAI upgrades ChatGPT and Codex with GPT-5.5: ‘a new class of intelligence for real work’
9to5Mac•4/23/2026•tech
OpenAI is capping off a busy week of announcements with the release of GPT-5.
5, its latest model upgrade for ChatGPT and Codex.
The company calls its new model “a new class of intelligence for real wo