OpenAI upgrades ChatGPT and Codex with GPT-5.5: ‘a new class of intelligence for real work’

9to5Mac4/23/2026tech

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